Fuel Economy Converter
Fuel Economy Converter
Convert between fuel economy units
Fuel Cost Comparison
Compare annual fuel costs between two vehicles
Formula
L/100km = 235.215 / MPG(US) | km/L = MPG(US) x 0.4251 | 1 US gal = 3.785 L | 1 Imp gal = 4.546 L
Frequently Asked Questions
How do I convert MPG to L/100km?
Divide 235.215 by the MPG value. For example, 30 MPG = 235.215 / 30 = 7.84 L/100km. Note: this uses US gallons. For imperial MPG, divide 282.481 by the MPG value.
What is the difference between US MPG and Imperial MPG?
A US gallon is 3.785 liters while an Imperial gallon is 4.546 liters. So Imperial MPG values are about 20% higher than US MPG for the same vehicle. A car rated 30 US MPG equals about 36 Imperial MPG.