UnitConversion

MPG to KM/L

Convert miles per gallon to kilometers per liter instantly.

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Formula

1 MPG = 0.425144 km/L

Unit Relationship

Miles per gallon and kilometres per litre both measure fuel economy. This converter uses 1 MPG = 0.425144 km/L, so convert MPG to km/L by multiplying by 0.425144.

Worked Example

For 30 MPG: 30 × 0.425144 = 12.75432 km/L.

Unit Definitions

MPG: Miles per gallon measures how many miles a vehicle travels using one U.S. gallon of fuel.

KM/L: Kilometres per litre measures how many kilometres a vehicle travels using one litre of fuel.

Practical Uses

comparing vehicle fuel economy across different unit systems
translating U.S. MPG figures into kilometres per litre
reviewing vehicle specifications from different markets
estimating fuel efficiency for travel and vehicle comparisons

Precision and Rounding

This converter uses the existing factor 1 MPG = 0.425144 km/L. Keep extra precision during calculations and round the final result as needed.

Important Notes

This page uses U.S. miles per gallon.
Higher MPG and higher km/L both indicate greater distance travelled per unit of fuel.
Do not confuse U.S. MPG with Imperial MPG because the gallon sizes differ.

Quick Reference

MPG	KM/L
10	4.2514
20	8.5029
30	12.7543
40	17.0058

Frequently Asked Questions

How do you convert MPG to km/L?

Multiply the MPG value by 0.425144.

How many km/L is 30 MPG?

30 MPG equals approximately 12.7543 km/L.

Does this converter use U.S. MPG?

Yes. The conversion factor used on this page is based on U.S. miles per gallon.

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