Carvico Tools
Carvico/Tools

Car cost calculators

Two numbers most drivers never work out, and both are worth knowing before the next repair bill decides for you. Free, no signup, no email, and the arithmetic happens in your browser.

Fuel economy

MPG calculator

Real miles per gallon from two odometer readings and one fill-up — the full-tank method, which is what your dashboard is not doing.

 Running costs

Cost per mile calculator

Fuel, maintenance, insurance, registration and depreciation, added up and divided by the miles you actually drove.

Where the numbers come from

Both calculators use your own figures and nothing else. If you want the reasoning rather than the result, the guides behind them are how to calculate MPG by hand and what your car actually costs per mile. For manufacturer figures on a specific car, the fuel economy database covers 1,782 models.