MPG

Calculate fuel economy from a full-tank fill-up.

Your numbers

Enter your numbers to see the result.

How MPG works

MPG = miles driven ÷ gallons used between full-tank fill-ups. Metric consumption is 235.214583 ÷ MPG in liters per 100 kilometers.

A worked example

These sample values illustrate the calculation. Use your own numbers in the calculator for your result.

Example inputs
Miles driven
300
Gallons used
10
Fuel economy
30 MPG
Metric consumption
7.8405 L/100km

Assumptions and limits

Measure distance between full-tank fill-ups. A partial fill does not give a reliable MPG measurement.

Check lender terms and manufacturer guidance. These estimates do not replace a mechanical inspection.