Free calculators

Your car, in numbers.

Calculate gas mileage, split road trip costs or work out your car's cost per mile. Three free calculators with no account required.

Gas mileage / MPG

Calculate MPG from miles driven and gallons used. Convert gas mileage to L/100 km or km/L, with separate US and UK gallons. Free, no sign-up.

Estimate gas costs from distance, MPG and price per gallon. Add tolls, parking and a return trip, then split the cost per person. Free to use.

Calculate your car's cost per mile, month and year. Include gas, insurance, maintenance, taxes and optional depreciation. Switch to km anytime.