How to use Fuel cost & trip calculator
- 1
Enter the trip
Type the distance, or add several legs, and switch on round trip if you are coming back the same way.
- 2
Describe the vehicle
Choose petrol/diesel or electric, enter fuel economy or energy use and the price per litre, gallon or kWh.
- 3
Split and compare
Set how many people share the cost, and switch on Compare to test a second car against the first.
Limits and Pro
Free and unlimited: up to 20 legs per trip and 1,000,000 km or miles each, four fuel-economy units, four EV units, three volume units, one comparison vehicle and up to 50 people sharing.
About Fuel cost & trip calculator
Plan what a drive will cost before you set off. Enter the distance in kilometres or miles, your car's fuel economy and the price at the pump, and the calculator returns the trip cost, the fuel you will burn, the cost per kilometre or mile and each passenger's share. It opens with units that match your country — miles, US gallons and MPG in the United States, miles with litre prices and UK MPG in Britain, kilometres and litres per 100 km almost everywhere else — and you can switch any unit without retyping, because values are converted for you.
Fuel economy can be given as litres per 100 km, kilometres per litre, US MPG or imperial (UK) MPG; prices per litre, US gallon or UK gallon; and any currency. Electric cars are first-class: enter consumption as kWh per 100 km or 100 miles, or as miles or kilometres per kWh, plus the price of electricity at home or at a charger.
Longer journeys can be built from several legs — home to the airport, then on to a hotel — with a round-trip switch for the way back, and a per-leg cost breakdown. The compare option runs the same trip for a second vehicle, so you can see what an electric car, a hybrid or a rental would save on this journey and over every 10,000 km or miles.
Results assume steady average consumption. Real use rises with motorway speeds, heavy loads, air conditioning, cold weather and city traffic, and the figures leave out tolls, parking, ferry fares and wear on the car.
Privacy
Distances, fuel prices and vehicle details are calculated only in your browser and never uploaded. The scenario is saved in the page link — so you can send the cost to your passengers — and in this browser's local storage.
Features
Petrol, diesel or electric
MPG (US/UK), L/100 km, km/L, kWh/100 km, mi/kWh and more.
Multi-leg trips
Add legs, a round trip and a per-leg cost breakdown.
Vehicle comparison
See which car is cheaper per trip and per 10,000 km or miles.