Fuel Calculator

Calculate fuel costs instantly. Log every journey. Export your data. Fuel Cost is the simple, private fuel expense tracker built for UK drivers. Whether you're calculating the cost of your next trip or keeping a detailed mileage log for work expenses, Fuel Cost does it all — with no account, no ads, and no data leaving your device. CALCULATE IN SECONDS Enter your distance, MPG, and fuel price — get your trip cost, total litres, and cost per mile instantly. Supports both Imperial (Miles/MPG) and Metric (KM/L per 100km). LOG YOUR JOURNEYS Keep a running record of every trip with start and end mileage, fuel price, efficiency, and notes. Your full history is always available at a glance with total miles and total spend. EXPORT YOUR DATA Share your journey log as a CSV file — perfect for expense claims, employer mileage reimbursements, or your own spreadsheet tracking. PRIVATE BY DESIGN All your data is stored locally on your device. No sign-up, no cloud sync, no tracking. BUILT FOR UK DRIVERS Defaults tuned for UK fuel prices and MPG. Helpful reference ranges for typical fuel costs and car efficiency built right in. Instant real-time calculations Imperial & Metric support Full journey history with mileage log CSV export via native share sheet Light & Dark Mode Works completely offline