Free MPG Calculator
Calculate your vehicle's fuel efficiency in miles per gallon from distance driven and fuel used.
miles
gal
Miles Per Gallon
28.0 MPG
Liters per 100 km8.4 L/100km
Fuel Cost per 100 Miles (@$3.50/gal)$12.50
Miles Per Gallon vs Miles Driven
How to Calculate MPG
Divide the total miles driven by the gallons of fuel consumed.
Formula
MPG = Miles Driven / Gallons Used
Conversion to L/100km
L/100km = 235.215 / MPG
Example Calculation
You drove 350 miles and used 12.5 gallons.
- 01MPG = 350 / 12.5 = 28.0 MPG
- 02L/100km = 235.215 / 28.0 = 8.4 L/100km
- 03Fuel cost per 100 miles = 100/28 x $3.50 = $12.50
Frequently Asked Questions
Learn More
How to Calculate a Tip - Complete Tipping Guide
Learn how to calculate a tip at restaurants, salons, and other services. Covers standard percentages, mental math shortcuts, and how to split the bill fairly.