Standardise onboarding header sizes

FuelBoard.xcodeproj/project.pbxproj

@@ -533,7 +533,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_ENTITLEMENTS = Config/WatchApp.entitlements;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 26;
+				CURRENT_PROJECT_VERSION = 27;
 				DEVELOPMENT_TEAM = F3BE6NE7U3;
 				ENABLE_PREVIEWS = YES;
 				ENABLE_USER_SCRIPT_SANDBOXING = YES;
@@ -599,7 +599,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_ENTITLEMENTS = Config/WatchApp.entitlements;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 26;
+				CURRENT_PROJECT_VERSION = 27;
 				DEVELOPMENT_TEAM = F3BE6NE7U3;
 				ENABLE_PREVIEWS = YES;
 				ENABLE_USER_SCRIPT_SANDBOXING = YES;
@@ -663,7 +663,7 @@
 				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 26;
+				CURRENT_PROJECT_VERSION = 27;
 				DEVELOPMENT_TEAM = F3BE6NE7U3;
 				ENABLE_PREVIEWS = YES;
 				ENABLE_USER_SCRIPT_SANDBOXING = YES;
@@ -728,7 +728,7 @@
 				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 26;
+				CURRENT_PROJECT_VERSION = 27;
 				DEVELOPMENT_TEAM = F3BE6NE7U3;
 				ENABLE_PREVIEWS = YES;
 				ENABLE_USER_SCRIPT_SANDBOXING = YES;
@@ -826,7 +826,7 @@
 				CODE_SIGN_ENTITLEMENTS = Config/App.entitlements;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 26;
+				CURRENT_PROJECT_VERSION = 27;
 				DEVELOPMENT_TEAM = F3BE6NE7U3;
 				GENERATE_INFOPLIST_FILE = NO;
 				INFOPLIST_FILE = "Config/App-Info.plist";
@@ -851,7 +851,7 @@
 				CODE_SIGN_ENTITLEMENTS = Config/App.entitlements;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 26;
+				CURRENT_PROJECT_VERSION = 27;
 				DEVELOPMENT_TEAM = F3BE6NE7U3;
 				GENERATE_INFOPLIST_FILE = NO;
 				INFOPLIST_FILE = "Config/App-Info.plist";
@@ -875,7 +875,7 @@
 				APPLICATION_EXTENSION_API_ONLY = YES;
 				CODE_SIGN_ENTITLEMENTS = Config/Widget.entitlements;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 26;
+				CURRENT_PROJECT_VERSION = 27;
 				DEVELOPMENT_TEAM = F3BE6NE7U3;
 				GENERATE_INFOPLIST_FILE = NO;
 				INFOPLIST_FILE = "Config/Widget-Info.plist";
@@ -900,7 +900,7 @@
 				APPLICATION_EXTENSION_API_ONLY = YES;
 				CODE_SIGN_ENTITLEMENTS = Config/Widget.entitlements;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 26;
+				CURRENT_PROJECT_VERSION = 27;
 				DEVELOPMENT_TEAM = F3BE6NE7U3;
 				GENERATE_INFOPLIST_FILE = NO;
 				INFOPLIST_FILE = "Config/Widget-Info.plist";

FuelBoard/ContentView.swift

@@ -1523,7 +1523,6 @@ struct ContentView: View {
             fuelSavingsSettings: fuelSavingsSettings,
             fuelSavingsAmount: $sessionFuelSavingsAmount,
             savingsForStation: savingsLookup(baseline: baselineStation, journeys: scaffold.journeys),
-            savingsBaselineStationName: baselineStation?.name,
             journeyDiagnosticsForStation: { station in journeyDiagnostics(for: station, baseline: baselineStation) },
             onToggleFavourite: toggleFavourite,
             onRefresh: { await refresh(force: true) }
@@ -1545,7 +1544,6 @@ struct ContentView: View {
             fuelSavingsSettings: fuelSavingsSettings,
             fuelSavingsAmount: $sessionFuelSavingsAmount,
             savingsForStation: savingsLookup(baseline: baselineStation, journeys: scaffold.journeys),
-            savingsBaselineStationName: baselineStation?.name,
             journeyDiagnosticsForStation: { station in journeyDiagnostics(for: station, baseline: baselineStation) },
             onToggleFavourite: toggleFavourite,
             onReorder: reorderFavourites,
@@ -1944,7 +1942,6 @@ struct StationRow: View {
                 FuelSavingsSummaryView(
                     availability: fuelSavings,
                     amount: fuelSavingsAmount,
-                    baselineStationName: nil,
                     compact: true,
                     distanceUnit: distanceUnit
                 )

FuelBoard/FavouritesView.swift

@@ -21,10 +21,9 @@ struct FavouritesView: View {
     /// still never touches the Settings default.
     let fuelSavingsSettings: FuelSavingsSettings
     @Binding var fuelSavingsAmount: FuelSavingsFillAmount
-    /// Estimated saving for a favourite, against the nearest eligible station —
-    /// the same baseline and definition the Stations list uses.
+    /// Estimated saving for a favourite, against the closest eligible station by
+    /// journey distance — the same baseline and definition the Stations list uses.
     var savingsForStation: (FuelStation) -> FuelSavingsAvailability? = { _ in nil }
-    var savingsBaselineStationName: String?
     var journeyDiagnosticsForStation: (FuelStation) -> FuelSavingsJourneyDiagnostics? = { _ in nil }
     var onToggleFavourite: (FuelStation, FuelType) -> Void = { _, _ in }
     /// Persists a reordered favourites array (after drag-and-drop).
@@ -84,7 +83,6 @@ struct FavouritesView: View {
          fuelSavingsSettings: FuelSavingsSettings = .defaults,
          fuelSavingsAmount: Binding<FuelSavingsFillAmount>,
          savingsForStation: @escaping (FuelStation) -> FuelSavingsAvailability? = { _ in nil },
-         savingsBaselineStationName: String? = nil,
          journeyDiagnosticsForStation: @escaping (FuelStation) -> FuelSavingsJourneyDiagnostics? = { _ in nil },
          onToggleFavourite: @escaping (FuelStation, FuelType) -> Void = { _, _ in },
          onReorder: @escaping ([FavouriteEntry]) -> Void = { _ in },
@@ -99,7 +97,6 @@ struct FavouritesView: View {
         self.fuelSavingsSettings = fuelSavingsSettings
         _fuelSavingsAmount = fuelSavingsAmount
         self.savingsForStation = savingsForStation
-        self.savingsBaselineStationName = savingsBaselineStationName
         self.journeyDiagnosticsForStation = journeyDiagnosticsForStation
         self.onToggleFavourite = onToggleFavourite
         self.onReorder = onReorder
@@ -152,7 +149,7 @@ struct FavouritesView: View {
                                 referencePricePencePerLitre: cheapestPrice
                             )
                         } footer: {
-                            Text(String(localized: "Savings below are estimated against the nearest station with a price for this fuel — the same baseline as the Stations list.", comment: "Favourites fuel-savings explanation"))
+                            Text(String(localized: "Savings below are estimated against the closest eligible station by journey distance — the same baseline as the Stations list.", comment: "Favourites fuel-savings explanation"))
                         }
                     }
 
@@ -221,7 +218,6 @@ struct FavouritesView: View {
                     distanceUnit: distanceUnit,
                     fuelSavings: savingsForStation(station),
                     fuelSavingsAmount: fuelSavingsAmount,
-                    savingsBaselineStationName: savingsBaselineStationName,
                     journeyDiagnostics: journeyDiagnosticsForStation(station),
                     // Every station listed here IS a favourite for the tab's
                     // fuel, so the star starts filled; tapping it unstars.

FuelBoard/FuelSavingsViews.swift

@@ -73,13 +73,17 @@ struct FuelSavingsAdjustmentView: View {
 struct FuelSavingsSummaryView: View {
     let availability: FuelSavingsAvailability?
     let amount: FuelSavingsFillAmount
-    let baselineStationName: String?
+    var baselineStationName: String? = nil
     var compact: Bool = false
     /// Sizes the "extra return travel" caption in the user's own unit (the
     /// stored figure is miles) — used by both the row banner and the detail sheet.
     var distanceUnit: DistanceUnit = .miles
     var showInfoAction: (() -> Void)? = nil
 
+    private func comparisonLabel(for result: FuelSavingsResult) -> String {
+        FuelSavingsFormat.comparisonLabel(status: result.status)
+    }
+
     var body: some View {
         switch availability {
         case .available(let result):
@@ -93,8 +97,16 @@ struct FuelSavingsSummaryView: View {
                 // break even, blue baseline. lineLimit + minimumScaleFactor keep
                 // it to one line, so rows stay even.
                 VStack(alignment: .leading, spacing: 2) {
-                    capsule(for: result, compact: true)
-                        .accessibilityLabel(accessibilityHeadline(for: result))
+                    HStack(alignment: .firstTextBaseline, spacing: 6) {
+                        capsule(for: result, compact: true)
+                            .accessibilityLabel(accessibilityHeadline(for: result))
+                        Text(comparisonLabel(for: result))
+                            .font(.caption2)
+                            .foregroundStyle(.secondary)
+                            .lineLimit(1)
+                            .layoutPriority(1)
+                            .accessibilityLabel("Comparison: \(comparisonLabel(for: result))")
+                    }
                     if let extraTravel = FuelSavingsFormat.extraTravelLabel(
                         extraDistanceMiles: result.extraDistanceMiles,
                         unit: distanceUnit,
@@ -118,8 +130,16 @@ struct FuelSavingsSummaryView: View {
                 // room for. The old shape led with a status word + headline that
                 // matched neither the listing nor each other.
                 VStack(alignment: .leading, spacing: 10) {
-                    capsule(for: result, compact: false)
-                        .accessibilityLabel(accessibilityHeadline(for: result))
+                    HStack(alignment: .firstTextBaseline, spacing: 6) {
+                        capsule(for: result, compact: false)
+                            .accessibilityLabel(accessibilityHeadline(for: result))
+                        Text(comparisonLabel(for: result))
+                            .font(.subheadline)
+                            .foregroundStyle(.secondary)
+                            .lineLimit(1)
+                            .layoutPriority(1)
+                            .accessibilityLabel("Comparison: \(comparisonLabel(for: result))")
+                    }
                     LabeledContent("Your fill-up", value: amountText)
                     LabeledContent("Fuel you'll receive", value: String(format: "%.2f litres", result.fillLitres))
                         .monospacedDigit()
@@ -134,11 +154,11 @@ struct FuelSavingsSummaryView: View {
                             .accessibilityLabel(spokenExtraTravel(for: result, fallback: extraTravel))
                     }
                     if result.status == .baseline {
-                        Text("Your closest station with a price for this fuel — every other saving is measured against it.")
+                        Text("Your closest eligible station by journey distance is the baseline — every other saving is measured against it.")
                             .font(.caption)
                             .foregroundStyle(.secondary)
                     } else {
-                        Text("Compared with \(baselineStationName ?? "your nearest station").")
+                        Text("Compared with \(baselineStationName ?? "your closest station").")
                             .font(.caption)
                             .foregroundStyle(.secondary)
                         LabeledContent(
@@ -234,7 +254,6 @@ struct FuelSavingsSummaryView: View {
                 .accessibilityHidden(true)
             Text(result.capsuleHeadline())
                 .lineLimit(1)
-                .minimumScaleFactor(0.8)
         }
         .font(compact ? .caption.weight(.semibold) : .headline)
         .foregroundStyle(capsuleColor(for: result.status))

FuelBoard/HowBestValueSheet.swift

@@ -14,7 +14,7 @@ struct HowBestValueSheet: View {
             List {
                 Section {
                     VStack(alignment: .leading, spacing: 10) {
-                        Text("Best Value compares each station with the closest one. It works out what you could save at the pump, then takes off the fuel used for the extra return journey.")
+                        Text("Best Value compares each station with the closest eligible station by journey distance. It works out what you could save at the pump, then takes off the fuel used for the extra return journey.")
                         Text("Your fill-up amount and MPG are used to show whether you could save overall.")
                         Text("Results are marked “Approx.” until road distances are available.")
                             .foregroundStyle(.secondary)

FuelBoard/OnboardingView.swift

@@ -111,7 +111,7 @@ struct OnboardingView: View {
             .padding(.bottom, 16)
 
             Text(String(localized: "Welcome to\nFuelBoard", comment: "Onboarding welcome title"))
-                .font(.title.bold())
+                .font(.largeTitle.bold())
                 .multilineTextAlignment(.center)
 
             Text(String(localized: "The cheapest petrol, diesel and premium fuel near you — from the official UK Fuel Finder data.", comment: "Onboarding welcome subtitle"))
@@ -156,7 +156,7 @@ struct OnboardingView: View {
             permissionStatusLabel(
                 granted: prompter.locationGranted,
                 denied: prompter.locationDenied,
-                deniedText: String(localized: "Location was denied. You can still browse all stations, but \"nearest\" sorting needs it.", comment: "Onboarding location denied text")
+                deniedText: String(localized: "Location was denied. You can still browse all stations, but \"closest\" sorting needs it.", comment: "Onboarding location denied text")
             )
             .padding(.top, 24)
 

FuelBoard/SettingsView.swift

@@ -285,7 +285,7 @@ struct SettingsView: View {
                     } header: {
                         Text("Debug")
                     } footer: {
-                        Text("The first button applies the real criteria — cheapest \(alertsFuel.displayName.lowercased()) station within \(distanceUnit.format(alertsRadiusKM)) of you — and sends the actual station's name, price and coordinates. The second fires with no criteria at all (nearest seller), still carrying a real station, just to verify a notification appears and tapping it opens directions. Cheapest in range mirrors the app list (selected fuel + distance); the in-range count mirrors the alert radius.")
+                        Text("The first button applies the real criteria — cheapest \(alertsFuel.displayName.lowercased()) station within \(distanceUnit.format(alertsRadiusKM)) of you — and sends the actual station's name, price and coordinates. The second fires with no criteria at all (closest seller), still carrying a real station, just to verify a notification appears and tapping it opens directions. Cheapest in range mirrors the app list (selected fuel + distance); the in-range count mirrors the alert radius.")
                     }
                     .onAppear { onRefreshDebugStatus() }
 

FuelBoard/StationsView.swift

@@ -19,7 +19,6 @@ struct StationsView: View {
     let fuelSavingsSettings: FuelSavingsSettings
     @Binding var fuelSavingsAmount: FuelSavingsFillAmount
     var savingsForStation: (FuelStation) -> FuelSavingsAvailability? = { _ in nil }
-    var savingsBaselineStationName: String?
     var journeyDiagnosticsForStation: (FuelStation) -> FuelSavingsJourneyDiagnostics? = { _ in nil }
     var onToggleFavourite: (FuelStation, FuelType) -> Void = { _, _ in }
     var onRefresh: () async -> Void = {}
@@ -68,7 +67,7 @@ struct StationsView: View {
         }
         if location != nil {
             if sortMode == .closest {
-                return "\(mode) \(fuel) stations — nearest first, best value within \(miles) \(unit) · \(ratio) stations updated"
+                return "\(mode) \(fuel) stations — closest first, best value within \(miles) \(unit) · \(ratio) stations updated"
             }
             return "\(mode) \(fuel) within \(miles) \(unit) — \(ratio) stations updated · \(tapHint)"
         }
@@ -94,7 +93,7 @@ struct StationsView: View {
                     }
                     .pickerStyle(.segmented)
                     // In Closest mode the whole country is the pool — the
-                    // radius is meaningless ("nearest" must never return an
+                    // radius is meaningless ("closest" must never return an
                     // empty state), so the picker is disabled but its value is
                     // kept for when the user switches back to Cheapest.
                     .disabled(sortMode == .closest)
@@ -348,7 +347,6 @@ struct StationsView: View {
                     distanceUnit: distanceUnit,
                     fuelSavings: savingsForStation(station),
                     fuelSavingsAmount: fuelSavingsAmount,
-                    savingsBaselineStationName: savingsBaselineStationName,
                     journeyDiagnostics: journeyDiagnosticsForStation(station),
                     isFavourite: favouriteIDs.contains(station.id),
                     onToggleFavourite: { onToggleFavourite(station, selectedFuel) }

FuelBoard/WidgetMockScreen.swift

@@ -76,7 +76,7 @@ struct WidgetMockScreen: View {
         let location = FuelStore.loadLocation().map { Coordinate(lat: $0.lat, lng: $0.lng) }
         // 5 miles — the widget config's default Distance. WidgetDistance itself
         // lives in the widget target, so the preview mirrors its default here.
-        let radiusKM = 5 * 1.60934
+        let radiusKM = 5 * FuelSavingsCalculator.kilometresPerMile
         let all = FuelStore.loadStations()
         let selling = all.filter { station in
             guard station.prices[fuel] != nil else { return false }
@@ -94,7 +94,8 @@ struct WidgetMockScreen: View {
             isFavourites: false,
             location: location,
             locationSource: location != nil ? "live" : "none",
-            unit: FuelStore.loadDistanceUnit()
+            unit: FuelStore.loadDistanceUnit(),
+            bestValueResult: nil
         )
     }
 }

FuelBoard/en.lproj/Localizable.strings

@@ -12,7 +12,7 @@
 "TOP" = "TOP";
 
 /* Stations tab */
-"Closest %@ stations — nearest first, best value within %lld %@ · %lld stations" = "Closest %@ stations — nearest first, best value within %lld %@ · %lld stations";
+"Closest %@ stations — closest first, best value within %lld %@ · %lld stations" = "Closest %@ stations — closest first, best value within %lld %@ · %lld stations";
 "Cheapest %@ within %lld %@ — %lld stations · tap a station for directions." = "Cheapest %@ within %lld %@ — %lld stations · tap a station for directions.";
 "%@ %@ — tap a station for directions." = "%@ %@ — tap a station for directions.";
 "Fuel type" = "Fuel type";
@@ -81,7 +81,7 @@
 "Test alert notification (real data)" = "Test alert notification (real data)";
 "Send plain test notification" = "Send plain test notification";
 "Debug" = "Debug";
-"The first button applies the real criteria — cheapest %@ station within %@ of you — and sends the actual station's name, price and coordinates. The second fires with no criteria at all (nearest seller), still carrying a real station, just to verify a notification appears and tapping it opens directions. Cheapest in range mirrors the app list (selected fuel + distance); the in-range count mirrors the alert radius." = "The first button applies the real criteria — cheapest %@ station within %@ of you — and sends the actual station's name, price and coordinates. The second fires with no criteria at all (nearest seller), still carrying a real station, just to verify a notification appears and tapping it opens directions. Cheapest in range mirrors the app list (selected fuel + distance); the in-range count mirrors the alert radius.";
+"The first button applies the real criteria — cheapest %@ station within %@ of you — and sends the actual station's name, price and coordinates. The second fires with no criteria at all (closest seller), still carrying a real station, just to verify a notification appears and tapping it opens directions. Cheapest in range mirrors the app list (selected fuel + distance); the in-range count mirrors the alert radius." = "The first button applies the real criteria — cheapest %@ station within %@ of you — and sends the actual station's name, price and coordinates. The second fires with no criteria at all (closest seller), still carrying a real station, just to verify a notification appears and tapping it opens directions. Cheapest in range mirrors the app list (selected fuel + distance); the in-range count mirrors the alert radius.";
 "Widget Diagnostics" = "Widget Diagnostics";
 "Each beacon is written by the widget extension at the end of every timeline entry for that intent type (keychain, so it survives free-SideStore installs). A missing SMALL beacon after adding the small widget means its timeline never reaches the provider. Installed widgets come from WidgetCenter." = "Each beacon is written by the widget extension at the end of every timeline entry for that intent type (keychain, so it survives free-SideStore installs). A missing SMALL beacon after adding the small widget means its timeline never reaches the provider. Installed widgets come from WidgetCenter.";
 "SMALL: %@" = "SMALL: %@";
@@ -139,7 +139,7 @@
 "Connection shows the source of the current prices (CSV mirror or API). Data updated is the latest price change reported by the GOV.UK server itself. Prices use the UK Fuel Finder dataset (Open Government Licence) and refresh up to twice a day." = "Connection shows the source of the current prices (CSV mirror or API). Data updated is the latest price change reported by the GOV.UK server itself. Prices use the UK Fuel Finder dataset (Open Government Licence) and refresh up to twice a day.";
 "Prices near you" = "Prices near you";
 "FuelBoard uses your location to show prices around you and rank stations by distance. Your position never leaves the device." = "FuelBoard uses your location to show prices around you and rank stations by distance. Your position never leaves the device.";
-"Location was denied. You can still browse all stations, but \"nearest\" sorting needs it." = "Location was denied. You can still browse all stations, but \"nearest\" sorting needs it.";
+"Location was denied. You can still browse all stations, but \"closest\" sorting needs it." = "Location was denied. You can still browse all stations, but \"closest\" sorting needs it.";
 "Allowed" = "Allowed";
 "The system prompt will appear next." = "The system prompt will appear next.";
 "FuelBoard can notify you when you're approaching the cheapest station in your alert radius — even with the app closed. You can switch this off in the Alerts tab." = "FuelBoard can notify you when you're approaching the cheapest station in your alert radius — even with the app closed. You can switch this off in the Alerts tab.";

FuelBoardTests/Tests/FuelBoardSharedTests/FuelBoardTests.swift

@@ -211,10 +211,10 @@ final class DistanceTests: XCTestCase {
     }
 
     func testMilesConversion() {
-        // 5 miles ≈ 8.05 km (app uses × 1.60934)
-        XCTAssertEqual(5 * 1.60934, 8.0467, accuracy: 0.001)
-        // 262 km ≈ 162.8 miles (display uses × 0.621371)
-        XCTAssertEqual(262 * 0.621371, 162.8, accuracy: 0.1)
+        // 5 miles ≈ 8.05 km using the shared exact conversion
+        XCTAssertEqual(5 * FuelSavingsCalculator.kilometresPerMile, 8.04672, accuracy: 0.001)
+        // 262 km ≈ 162.8 miles using the shared exact conversion
+        XCTAssertEqual(262 / FuelSavingsCalculator.kilometresPerMile, 162.8, accuracy: 0.1)
     }
 }
 
@@ -267,14 +267,14 @@ final class FuelTypeLabelTests: XCTestCase {
     }
 
     func testDistanceUnitConversion() {
-        XCTAssertEqual(DistanceUnit.miles.toKM(1), 1.60934, accuracy: 0.00001)
+        XCTAssertEqual(DistanceUnit.miles.toKM(1), 1.609344, accuracy: 0.00001)
         XCTAssertEqual(DistanceUnit.kilometers.toKM(5), 5)
-        XCTAssertEqual(DistanceUnit.miles.fromKM(1.60934), 1, accuracy: 0.00001)
+        XCTAssertEqual(DistanceUnit.miles.fromKM(1.609344), 1, accuracy: 0.00001)
         XCTAssertEqual(DistanceUnit.kilometers.fromKM(2.5), 2.5)
     }
 
     func testDistanceUnitFormat() {
-        XCTAssertEqual(DistanceUnit.miles.format(1.60934), "1.0 mi")
+        XCTAssertEqual(DistanceUnit.miles.format(1.609344), "1.0 mi")
         XCTAssertEqual(DistanceUnit.kilometers.format(3.4), "3.4 km")
     }
 }
@@ -400,7 +400,7 @@ final class AlertRadiusFollowTests: XCTestCase {
         FuelStore.saveDistanceUnit(.miles)
         FuelStore.saveStationLimit(5)
         let eff = FuelStore.effectiveAlertsRadiusKM(followsSearch: true, manualKM: 3)
-        XCTAssertEqual(eff, 5 * 1.60934, accuracy: 0.001)
+        XCTAssertEqual(eff, 5 * FuelSavingsCalculator.kilometresPerMile, accuracy: 0.001)
     }
 }
 
@@ -731,7 +731,7 @@ final class RoadDistanceCacheTests: XCTestCase {
             sourceLat: sourceLat, sourceLng: sourceLng,
             entries: ["far": .init(meters: 23_500, lat: 51.5074, lng: -0.1278, returnMeters: 23_500)])
 
-        let tenMilesKM = 10 * 1.60934
+        let tenMilesKM = 10 * FuelSavingsCalculator.kilometresPerMile
         XCTAssertLessThan(far.distanceKM(to: sourceLat, lng2: sourceLng), tenMilesKM,
                           "fixture: the straight line must sit INSIDE the 10-mile radius")
         XCTAssertGreaterThan(FuelStore.displayDistanceKM(station: far, userLat: sourceLat, userLng: sourceLng),
@@ -743,7 +743,7 @@ final class RoadDistanceCacheTests: XCTestCase {
                                                       userLat: sourceLat, userLng: sourceLng),
                        "a station whose row reads 14.6 mi must not appear in a 10-mile list")
         // The same station is back once the radius actually covers its distance.
-        XCTAssertTrue(FuelStore.isWithinDisplayRadius(station: far, radiusKM: 15 * 1.60934,
+        XCTAssertTrue(FuelStore.isWithinDisplayRadius(station: far, radiusKM: 15 * FuelSavingsCalculator.kilometresPerMile,
                                                      userLat: sourceLat, userLng: sourceLng))
         // …and an unknown station (no cached route) still tests its displayed
         // straight line, so nothing changes for the bulk of the list.
@@ -783,10 +783,10 @@ final class RoadDistanceCacheTests: XCTestCase {
         XCTAssertFalse(confirmed.isApproximate, "a cached road distance is not an approximation")
         XCTAssertEqual(confirmed.km, 3.2, accuracy: 0.0001)
         XCTAssertEqual(confirmed.label(unit: .miles), "2.0 mi")
-        XCTAssertEqual(confirmed.labelWithReturn(unit: .miles), "2.0 mi (4.0 mi return)")
-        XCTAssertEqual(confirmed.labelWithReturn(unit: .kilometers), "3.2 km (6.4 km return)")
+        XCTAssertEqual(confirmed.labelWithReturn(unit: .miles), "2.0 mi (4.2 mi return)")
+        XCTAssertEqual(confirmed.labelWithReturn(unit: .kilometers), "3.2 km (6.8 km return)")
         XCTAssertEqual(confirmed.spokenLabel(unit: .miles), "2.0 miles")
-        XCTAssertEqual(confirmed.spokenLabelWithReturn(unit: .miles), "2.0 miles, 4.0 miles return")
+        XCTAssertEqual(confirmed.spokenLabelWithReturn(unit: .miles), "2.0 miles, 4.2 miles return")
 
         let approximate = FuelStore.stationDistanceDisplay(station: unrouted, userLat: 51.6, userLng: -0.1)
         XCTAssertTrue(approximate.isApproximate, "the straight-line fallback must be identified as one")
@@ -794,11 +794,40 @@ final class RoadDistanceCacheTests: XCTestCase {
         XCTAssertEqual(approximate.label(unit: .miles),
                        "Approx. " + DistanceUnit.miles.format(approximate.km))
         XCTAssertEqual(approximate.labelWithReturn(unit: .miles),
-                       "Approx. \(DistanceUnit.miles.format(approximate.km)) (\(DistanceUnit.miles.format(approximate.km * 2)) return)")
+                       "Approx. " + DistanceUnit.miles.format(approximate.km) + " (Approx. " + DistanceUnit.miles.format(approximate.km * 2) + " return)")
         XCTAssertEqual(approximate.spokenLabel(unit: .kilometers),
                        "Approximately " + DistanceUnit.kilometers.spoken(approximate.km))
         XCTAssertEqual(approximate.spokenLabelWithReturn(unit: .kilometers),
-                       "Approximately \(DistanceUnit.kilometers.spoken(approximate.km)), \(DistanceUnit.kilometers.spoken(approximate.km * 2)) return")
+                       "Approximately \(DistanceUnit.kilometers.spoken(approximate.km)), Approximately \(DistanceUnit.kilometers.spoken(approximate.km * 2)) return")
+    }
+
+    func testDisplayedReturnUsesTheIndependentlyMeasuredReturnRoute() {
+        FuelStore.setAccurateDistancesEnabled(true)
+        let station = station("separate-legs", 51.5074, -0.1278)
+        FuelStore.saveRoadDistances(
+            sourceLat: 51.6,
+            sourceLng: -0.1,
+            entries: ["separate-legs": .init(
+                meters: 4_650,
+                lat: station.lat,
+                lng: station.lng,
+                returnMeters: 4_820
+            )],
+            complete: true
+        )
+
+        let display = FuelStore.stationDistanceDisplay(
+            station: station,
+            userLat: 51.6,
+            userLng: -0.1
+        )
+
+        XCTAssertEqual(display.km, 4.65, accuracy: 1e-12)
+        XCTAssertEqual(display.returnKM, 9.47, accuracy: 1e-12)
+        XCTAssertFalse(display.isApproximate)
+        XCTAssertFalse(display.returnIsApproximate)
+        XCTAssertEqual(display.labelWithReturn(unit: .miles), "2.9 mi (5.9 mi return)")
+        XCTAssertEqual(display.spokenLabelWithReturn(unit: .miles), "2.9 miles, 5.9 miles return")
     }
 
     /// The marker tracks the cache on its own: same station, bare figure once its
@@ -961,7 +990,7 @@ final class RoadDistanceCacheTests: XCTestCase {
         let display = FuelStore.stationDistanceDisplay(station: routed, userLat: 51.6, userLng: -0.1)
         XCTAssertTrue(display.isApproximate, "the browse layer must never serve routes with the mode off")
         XCTAssertEqual(display.km, routed.distanceKM(to: 51.6, lng2: -0.1), accuracy: 0.0001)
-        XCTAssertTrue(FuelStore.isWithinDisplayRadius(station: routed, radiusKM: 10 * 1.60934,
+        XCTAssertTrue(FuelStore.isWithinDisplayRadius(station: routed, radiusKM: 10 * FuelSavingsCalculator.kilometresPerMile,
                                                       userLat: 51.6, userLng: -0.1),
                       "with the mode off the radius is a straight-line radius, agreeing with the rows")
 
@@ -1000,7 +1029,7 @@ final class RoadDistanceCacheTests: XCTestCase {
         let display = FuelStore.stationDistanceDisplay(station: routed, userLat: 51.6, userLng: -0.1)
         XCTAssertFalse(display.isApproximate)
         XCTAssertEqual(display.km, 23.5, accuracy: 0.0001)
-        XCTAssertFalse(FuelStore.isWithinDisplayRadius(station: routed, radiusKM: 10 * 1.60934,
+        XCTAssertFalse(FuelStore.isWithinDisplayRadius(station: routed, radiusKM: 10 * FuelSavingsCalculator.kilometresPerMile,
                                                        userLat: 51.6, userLng: -0.1),
                        "in this mode a 10-mile radius is 10 miles of driving, matching the routed rows")
     }

FuelBoardTests/Tests/FuelBoardSharedTests/FuelSavingsCalculationAuditTests.swift

@@ -263,6 +263,23 @@ final class FuelSavingsCalculationAuditTests: XCTestCase {
         XCTAssertEqual(FuelSavingsFormat.money(0), "£0.00")
     }
 
+    func testIndependentlyRoundedFinancialComponentsMayDifferFromRoundedTotalByOnePenny() {
+        let gross = 1.234
+        let drivingCost = 0.005
+        let net = gross - drivingCost
+
+        XCTAssertEqual(FuelSavingsFormat.money(gross), "£1.23")
+        XCTAssertEqual(FuelSavingsFormat.money(drivingCost), "£0.01")
+        XCTAssertEqual(FuelSavingsFormat.money(net), "£1.23")
+        let independentlyRoundedSubtraction = 1.23 - 0.01
+        XCTAssertEqual(independentlyRoundedSubtraction, 1.22, accuracy: 1e-12)
+        XCTAssertNotEqual(
+            FuelSavingsFormat.money(independentlyRoundedSubtraction),
+            FuelSavingsFormat.money(net),
+            "the raw total remains authoritative; independently rounded components need not add back exactly"
+        )
+    }
+
     func testSortingUsesTheUnroundedNetSoRoundedTiesStillOrderCorrectly() {
         // Two rows that both DISPLAY "£0.18 worse off" but differ in the raw
         // figure: the sort must use the raw value, never the shown one.

FuelBoardTests/Tests/FuelBoardSharedTests/FuelSavingsEstimateTests.swift

@@ -454,6 +454,25 @@ final class FuelSavingsEstimateTests: XCTestCase {
 
     // MARK: Row copy
 
+    func testCompactComparisonLabelUsesGenericNearestStationWording() {
+        XCTAssertEqual(
+            FuelSavingsFormat.comparisonLabel(status: .worthTheDrive),
+            "vs closest station"
+        )
+        XCTAssertEqual(
+            FuelSavingsFormat.comparisonLabel(status: .notWorthTheDrive),
+            "vs closest station"
+        )
+        XCTAssertEqual(
+            FuelSavingsFormat.comparisonLabel(status: .breakEven),
+            "vs closest station"
+        )
+        XCTAssertEqual(
+            FuelSavingsFormat.comparisonLabel(status: .baseline),
+            "your baseline"
+        )
+    }
+
     /// The row's extra-driving caption must follow the DISPLAY unit: the stored
     /// figure is always miles, and converting by the current unit instead would
     /// leave a km user's figure unlabelled and 1.6× too large.
@@ -486,7 +505,7 @@ final class FuelSavingsEstimateTests: XCTestCase {
             netSavingGBP: 0,
             status: .baseline
         )
-        XCTAssertEqual(baseline.capsuleHeadline(), "Closest station · your baseline")
+        XCTAssertEqual(baseline.capsuleHeadline(), "Closest station")
 
         let saving = FuelSavingsResult(
             fillLitres: 30,

FuelBoardWatch Watch App/ContentView.swift

@@ -51,7 +51,7 @@ private enum WatchDistanceUnit: String, Codable {
     func format(km: Double) -> String {
         switch self {
         case .miles:
-            return String(format: "%.1f mi", km * 0.621371)
+            return String(format: "%.1f mi", km / 1.609344)
         case .kilometers:
             return String(format: "%.1f km", km)
         }

FuelBoardWidgets/FuelPriceWidget.swift

@@ -95,7 +95,8 @@ struct FuelPriceTimelineProvider<Configuration: WidgetConfigurationIntent & Widg
             data: FuelPriceWidgetEntryData(
                 date: Date(), stations: Array(sample.prefix(8)),
                 fuel: .e10, sort: .cheapest, isFavourites: false,
-                location: nil, locationSource: "none", unit: unit
+                location: nil, locationSource: "none", unit: unit,
+                bestValueResult: nil
             )
         )
     }
@@ -146,8 +147,9 @@ struct FuelPriceTimelineProvider<Configuration: WidgetConfigurationIntent & Widg
         // Per-widget config: fuel + sort + distance come from THIS widget instance.
         let fuel = FuelType(rawValue: configuration.fuel.rawValue) ?? .e10
         let isFavourites = configuration.sort == .favourites
-        let sort: SortMode = configuration.sort == .closest ? .closest : .cheapest
-        let radiusKM = Double(configuration.distance.miles) * 1.60934
+        let sort: SortMode = configuration.sort == .closest ? .closest :
+            (configuration.sort == .worthTheDrive ? .worthTheDrive : .cheapest)
+        let radiusKM = Double(configuration.distance.miles) * FuelSavingsCalculator.kilometresPerMile
 
         // 1) Try a fresh location fix (bounded to a few seconds). The fix's own
         // accuracy is kept: the extension runs its own CLLocationManager and is
@@ -200,6 +202,7 @@ struct FuelPriceTimelineProvider<Configuration: WidgetConfigurationIntent & Widg
 
         // 3) Load + order stations per widget mode.
         let ordered: [FuelStation]
+        var bestValueResult: FuelSavingsResult?
         if isFavourites {
             let favourites = FuelStore.loadFavourites()
                 .filter { $0.station.prices[$0.fuel] != nil }
@@ -265,7 +268,7 @@ struct FuelPriceTimelineProvider<Configuration: WidgetConfigurationIntent & Widg
             let filtered = stations.filter { $0.prices[fuel] != nil }
             switch sort {
             case .closest:
-                // Nearest first; price only breaks ties.
+                // Closest first; price only breaks ties.
                 ordered = filtered.sorted { lhs, rhs in
                     if let origin {
                         let lDist = FuelStore.displayDistanceKM(station: lhs, userLat: origin.lat, userLng: origin.lng)
@@ -274,9 +277,59 @@ struct FuelPriceTimelineProvider<Configuration: WidgetConfigurationIntent & Widg
                     }
                     return lhs.prices[fuel]! < rhs.prices[fuel]!
                 }
-            case .cheapest, .worthTheDrive:
-                // Cheapest first; distance only breaks ties. Worth-the-Drive is app-only;
-                // widgets fall back to cheapest ordering if a stored config ever carries it.
+            case .worthTheDrive:
+                guard let origin else {
+                    ordered = filtered.sorted { $0.prices[fuel]! < $1.prices[fuel]! }
+                    break
+                }
+                let journey: (FuelStation) -> FuelSavingsJourney? = { station in
+                    if let meters = FuelStore.roadJourneyMeters(for: station, userLat: origin.lat, userLng: origin.lng) {
+                        let confidence: JourneyConfidence = FuelStore.hasMeasuredReturnRoadDistance(
+                            for: station, userLat: origin.lat, userLng: origin.lng
+                        ) ? .confirmed : .estimated
+                        return FuelSavingsJourney(
+                            miles: meters / FuelSavingsCalculator.metresPerMile,
+                            basis: .roadRoute,
+                            confidence: confidence
+                        )
+                    }
+                    return FuelSavingsJourney(
+                        miles: FuelStore.displayDistanceKM(station: station, userLat: origin.lat, userLng: origin.lng) /
+                            FuelSavingsCalculator.kilometresPerMile * 2,
+                        basis: .straightLine,
+                        confidence: .estimated
+                    )
+                }
+                let settings = FuelStore.loadFuelSavingsSettings()
+                guard settings.isConfigured else {
+                    ordered = filtered.sorted { $0.prices[fuel]! < $1.prices[fuel]! }
+                    break
+                }
+                let amount = settings.preferredAmount
+                let baseline = FuelSavingsEstimator.baselineStation(filtered, fuel: fuel, journeyMiles: journey)
+                let ranked = FuelSavingsEstimator.ranked(
+                    filtered,
+                    fuel: fuel,
+                    baseline: baseline,
+                    settings: settings,
+                    amount: amount,
+                    journeyMiles: journey
+                )
+                ordered = ranked
+                if let first = ranked.first, let baseline {
+                    let baselineJourney = journey(baseline)
+                    let result = FuelSavingsEstimator.availability(
+                        station: first,
+                        fuel: fuel,
+                        baseline: baseline,
+                        settings: settings,
+                        amount: amount,
+                        journey: journey(first),
+                        baselineJourney: baselineJourney
+                    )
+                    bestValueResult = result?.result
+                }
+            case .cheapest:
                 ordered = filtered.sorted { lhs, rhs in
                     let lPrice = lhs.prices[fuel]!
                     let rPrice = rhs.prices[fuel]!
@@ -295,7 +348,7 @@ struct FuelPriceTimelineProvider<Configuration: WidgetConfigurationIntent & Widg
                 date: Date(), stations: Array(ordered.prefix(8)),
                 fuel: fuel, sort: sort, isFavourites: isFavourites,
                 location: origin, locationSource: source,
-                unit: unit
+                unit: unit, bestValueResult: bestValueResult
             )
         ), originSource)
     }

FuelBoardWidgets/WidgetConfigIntent.swift

@@ -30,6 +30,7 @@ enum WidgetFuel: String, AppEnum, CaseIterable, Codable {
 enum WidgetSort: String, AppEnum, CaseIterable, Codable {
     case cheapest
     case closest
+    case worthTheDrive
     case favourites
 
     static var typeDisplayRepresentation: TypeDisplayRepresentation = "Sort by"
@@ -37,6 +38,7 @@ enum WidgetSort: String, AppEnum, CaseIterable, Codable {
     static var caseDisplayRepresentations: [WidgetSort: DisplayRepresentation] = [
         .cheapest: "Cheapest",
         .closest: "Closest",
+        .worthTheDrive: "Best Value",
         .favourites: "Favourites",
     ]
 }
@@ -112,9 +114,17 @@ struct FuelBoardWidgetConfigurationIntent: WidgetConfigurationIntent, WidgetConf
                     \.$sort
                 }
             } otherwise: {
-                Summary("Show \(\.$fuel) by \(\.$sort)") {
-                    \.$fuel
-                    \.$sort
+                When(\.$sort, .equalTo, WidgetSort.worthTheDrive) {
+                    Summary("Show \(\.$fuel) by \(\.$sort) within \(\.$distance)") {
+                        \.$fuel
+                        \.$sort
+                        \.$distance
+                    }
+                } otherwise: {
+                    Summary("Show \(\.$fuel) by \(\.$sort)") {
+                        \.$fuel
+                        \.$sort
+                    }
                 }
             }
         }

Shared/FuelPriceWidgetViews.swift

@@ -29,11 +29,12 @@ struct FuelPriceWidgetEntryData {
     let date: Date
     let stations: [FuelStation]   // already filtered + sorted per config
     let fuel: FuelType
-    let sort: SortMode            // per-widget: cheapest | closest
-    let isFavourites: Bool        // favourites mode: pinned stations, cheapest-first
+    let sort: SortMode            // per-widget: cheapest | closest | Best Value
+    let isFavourites: Bool        // favourites mode: pinned stations
     let location: Coordinate?
     let locationSource: String    // "live" | "cached" | "none"
     let unit: DistanceUnit        // user's display unit for distances
+    let bestValueResult: FuelSavingsResult? // only populated for the small Best Value face
 }
 
 /// The widget face, parameterised by family so the app can preview it.
@@ -67,9 +68,11 @@ struct FuelPriceWidgetContent: View {
 
     private var heading: String {
         if entry.isFavourites { return "Favourite \(entry.fuel.displayName)" }
-        return entry.sort == .closest
-            ? "Closest \(entry.fuel.displayName)"
-            : "Cheapest \(entry.fuel.displayName)"
+        switch entry.sort {
+        case .closest: return "Closest \(entry.fuel.displayName)"
+        case .worthTheDrive: return "Best Value \(entry.fuel.displayName)"
+        case .cheapest: return "Cheapest \(entry.fuel.displayName)"
+        }
     }
 
     private var singleStation: some View {
@@ -85,7 +88,15 @@ struct FuelPriceWidgetContent: View {
             Text(station.name)
                 .font(.headline)
                 .lineLimit(1)
-            if let price = station.prices[entry.fuel] {
+            if entry.sort == .worthTheDrive, let result = entry.bestValueResult {
+                Text(result.headline(compact: true))
+                    .font(.title3.weight(.bold))
+                    .lineLimit(1)
+                Text(result.status == .baseline ? "your baseline" : "vs closest station")
+                    .font(.caption2)
+                    .foregroundStyle(.secondary)
+                    .lineLimit(1)
+            } else if let price = station.prices[entry.fuel] {
                 FuelStore.priceTextAttributed(price, size: 26, weight: .bold, color: .green)
             }
             if let location = entry.location {

Shared/FuelSavings.swift

@@ -143,6 +143,13 @@ enum FuelSavingsFormat {
             : "\(distanceText) extra return travel"
     }
 
+    /// Compact comparison copy kept outside the coloured verdict capsule.
+    /// "Closest" refers to the existing shortest-journey baseline selection;
+    /// it does not claim a straight-line comparison.
+    static func comparisonLabel(status: FuelSavingsStatus) -> String {
+        status == .baseline ? "your baseline" : "vs closest station"
+    }
+
     /// VoiceOver form of `extraTravelLabel`. The abbreviation and the unit suffix
     /// are spoken as words ("Approximately 6.4 miles extra return travel") because
     /// synthesizers render "Approx." and "mi" inconsistently.
@@ -215,13 +222,11 @@ extension FuelSavingsResult {
         headline().replacingOccurrences(of: "Approx. ", with: "Approximately ")
     }
 
-    /// Row capsule copy: the headline, plus what the baseline row IS. Without the
-    /// suffix the baseline capsule just repeated the status word above it
-    /// ("Closest station" twice) and said nothing about the saving being measured
-    /// against it.
+    /// Row capsule copy. The baseline relationship is shown as secondary text
+    /// beside the capsule in the station listing and detail summary, so the
+    /// capsule itself contains only the verdict.
     func capsuleHeadline() -> String {
-        let headline = headline(compact: true)
-        return status == .baseline ? "\(headline) · your baseline" : headline
+        headline(compact: true)
     }
 }
 

Shared/FuelStore.swift

@@ -183,13 +183,13 @@ enum DistanceUnit: String, Codable, CaseIterable, Identifiable {
     /// shown in this unit, rounded to a whole number for picker labels:
     /// 5 miles -> "5" (miles unit) or "8" (km unit).
     func displayMiles(_ miles: Int) -> Int {
-        Int(fromKM(Double(miles) * 1.60934).rounded())
+        Int(fromKM(Double(miles) * FuelSavingsCalculator.kilometresPerMile).rounded())
     }
 
     /// Convert a value expressed in this unit to km.
     func toKM(_ value: Double) -> Double {
         switch self {
-        case .miles: return value * 1.60934
+        case .miles: return value * FuelSavingsCalculator.kilometresPerMile
         case .kilometers: return value
         }
     }
@@ -197,7 +197,7 @@ enum DistanceUnit: String, Codable, CaseIterable, Identifiable {
     /// Convert a km value to this unit.
     func fromKM(_ km: Double) -> Double {
         switch self {
-        case .miles: return km * 0.621371
+        case .miles: return km / FuelSavingsCalculator.kilometresPerMile
         case .kilometers: return km
         }
     }
@@ -979,7 +979,7 @@ struct FuelStore {
 
     /// "Follow search" caps the geofence at 8 miles so a 10/15-mile Stations
     /// search never creates huge region-monitoring circles.
-    static let alertFollowCapKM: Double = 8 * 1.60934
+    static let alertFollowCapKM: Double = 8 * FuelSavingsCalculator.kilometresPerMile
 
     /// The effective alert radius: the manual radius, or — when alerts follow
     /// the Stations-tab search — that distance (miles, converted via the
@@ -1618,10 +1618,22 @@ struct FuelStore {
         // what the rows show.
         if accurateDistancesEnabled,
            accurateDistancesReady(userLat: userLat, userLng: userLng),
-           let meters = roadDistanceMeters(for: station, userLat: userLat, userLng: userLng) {
-            return StationDistanceDisplay(km: meters / 1000.0, isApproximate: false)
+           let entry = roadDistanceEntry(for: station, userLat: userLat, userLng: userLng) {
+            let returnKM = (entry.meters + (entry.returnMeters ?? entry.meters)) / 1000.0
+            return StationDistanceDisplay(
+                km: entry.meters / 1000.0,
+                isApproximate: false,
+                returnKM: returnKM,
+                returnIsApproximate: entry.returnMeters == nil
+            )
         }
-        return StationDistanceDisplay(km: station.distanceKM(to: userLat, lng2: userLng), isApproximate: true)
+        let km = station.distanceKM(to: userLat, lng2: userLng)
+        return StationDistanceDisplay(
+            km: km,
+            isApproximate: true,
+            returnKM: km * 2,
+            returnIsApproximate: true
+        )
     }
 
     /// Radius test on the SAME distance the UI shows. Filtering straight-line
@@ -1710,35 +1722,50 @@ struct RoadDistanceDiagnostics: Equatable {
 /// road distance or the straight-line fallback. The confidence travels WITH the
 /// value, so a label can never claim a confidence the figure doesn't have.
 struct StationDistanceDisplay: Equatable {
-    let km: Double
-    let isApproximate: Bool
+let km: Double
+let isApproximate: Bool
+let returnKM: Double
+let returnIsApproximate: Bool
 
-    /// Row/sheet label: a straight-line fallback is marked "Approx." so a figure
-    /// that is NOT a routed road distance can never be read as one, and a cached
-    /// road distance stays a bare figure. It updates by itself once routing lands,
-    /// because `FuelStore.stationDistanceDisplay` re-reads the cache every call.
-    func label(unit: DistanceUnit) -> String {
-        let text = unit.format(km)
-        return isApproximate ? "Approx. \(text)" : text
-    }
+init(km: Double,
+     isApproximate: Bool,
+     returnKM: Double? = nil,
+     returnIsApproximate: Bool? = nil) {
+    self.km = km
+    self.isApproximate = isApproximate
+    self.returnKM = returnKM ?? km * 2
+    self.returnIsApproximate = returnIsApproximate ?? isApproximate
+}
 
-    /// Row/sheet label that keeps the one-way station distance primary, then
-    /// adds the out-and-back distance in brackets. This matches Best Value's
-    /// "extra return travel" basis without changing the actual distance model.
-    func labelWithReturn(unit: DistanceUnit) -> String {
-        "\(label(unit: unit)) (\(unit.format(km * 2)) return)"
-    }
+/// Row/sheet label: a straight-line fallback is marked "Approx." so a figure
+/// that is NOT a routed road distance can never be read as one, and a cached
+/// road distance stays a bare figure. It updates by itself once routing lands,
+/// because `FuelStore.stationDistanceDisplay` re-reads the cache every call.
+func label(unit: DistanceUnit) -> String {
+    let text = unit.format(km)
+    return isApproximate ? "Approx. \(text)" : text
+}
 
-    /// VoiceOver form of `label(unit:)`.
-    func spokenLabel(unit: DistanceUnit) -> String {
-        let text = unit.spoken(km)
-        return isApproximate ? "Approximately \(text)" : text
-    }
+/// Row/sheet label that keeps the one-way station distance primary, then
+/// adds the independently measured or estimated out-and-back distance.
+func labelWithReturn(unit: DistanceUnit) -> String {
+    let returnText = unit.format(returnKM)
+    let returnLabel = returnIsApproximate ? "Approx. \(returnText)" : returnText
+    return "\(label(unit: unit)) (\(returnLabel) return)"
+}
 
-    /// VoiceOver form of `labelWithReturn(unit:)`.
-    func spokenLabelWithReturn(unit: DistanceUnit) -> String {
-        "\(spokenLabel(unit: unit)), \(unit.spoken(km * 2)) return"
-    }
+/// VoiceOver form of `label(unit:)`.
+func spokenLabel(unit: DistanceUnit) -> String {
+    let text = unit.spoken(km)
+    return isApproximate ? "Approximately \(text)" : text
+}
+
+/// VoiceOver form of `labelWithReturn(unit:)`.
+func spokenLabelWithReturn(unit: DistanceUnit) -> String {
+    let returnText = unit.spoken(returnKM)
+    let returnLabel = returnIsApproximate ? "Approximately \(returnText)" : returnText
+    return "\(spokenLabel(unit: unit)), \(returnLabel) return"
+}
 }
 
 /// Cached Apple-Maps road distances for nearby stations (see

Shared/SiriCheapestLookup.swift

@@ -21,7 +21,7 @@ enum SiriCheapestLookup {
         lng: Double,
         withinMiles: Double
     ) -> FuelStation? {
-        let radiusKM = withinMiles * 1.60934
+        let radiusKM = withinMiles * FuelSavingsCalculator.kilometresPerMile
         // Same radius rule as the app list: the distance the answer would SHOW
         // (cached road route where there is one).
         return stations