Fuel Calculator: Trip Costs

See what a drive will actually cost before you leave. Add your cars, enter the distance, and get one-way and round-trip fuel cost in seconds — with MPG, L/100km, petrol, diesel, or EV. Fuel Calculator is a trip cost companion for the cars you actually drive. Save a garage, set the pump or charger price you just paid, and know the number before you start the engine. WHAT YOU CAN DO • Price a trip in seconds Enter the distance, pick a car, and see fuel used and cost for one-way or round-trip. Add tolls, parking, road fees, or other extras so the total matches the journey. • Keep a garage of your cars Save petrol, diesel, and electric vehicles with L/100km, km/L, MPG (US), MPG (UK), or kWh/100km. Add a photo so the right car is obvious when you calculate. • Use your local units Works with kilometres or miles, litres or gallons, and local fuel grades. Defaults follow your region — United States, United Kingdom, Canada, Australia, New Zealand, and more — and you can change prices any time. • Track ownership and running costs Log insurance, registration, servicing, tyres, and other yearly costs per car, then see them alongside trip spend. • Save trip history Keep past journeys so you can look back at what a commute, weekend, or road trip really cost. • Private by design Your garage, trips, and prices stay on your device. No account is required. Fuel Calculator estimates cost from the efficiency and prices you provide. It does not show live station prices or turn-by-turn directions. If it saves you a guess on the next drive, a review is the nicest way to help it get found.