Fuel economy calculators

Free, instant tools for working out what driving really costs. Each one can pull the official EPA rating of any car since 1984 so you don't have to look it up.

MPG to L/100 km & km/L ConverterConvert MPG to L/100 km, km/L and UK MPG, and MPGe to kWh per 100 miles, instantly. Fuel Cost CalculatorWork out what any car costs to fuel per year, month and mile from its MPG and your gas price. Road Trip Gas Cost CalculatorEstimate the fuel cost of a road trip for any car, split between passengers. EV vs Gas Cost CalculatorSee how much an electric car saves over a gas car and how long it takes to pay back a higher price.