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Miles per US Gallon to Kilometers per Liter converter

Convert mpg (US) to km/L instantly. Type any value and get the result in kilometers per liter. 1 mpg (US) = 0.425144 km/L.

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Fuel Economy›mpg (US) → km/L
From
To
result below ↓
1 mpg (US)=
0.425144km/L
formula1 mpg (US) = 0.425144 km/L

Common miles per us gallon → kilometers per liter

=0.425144 km/L
=0.850287 km/L
=2.12572 km/L
=4.25144 km/L
=8.50287 km/L
=21.2572 km/L
=42.5144 km/L
=212.572 km/L
=425.144 km/L

Need a different value? .

Convert the other way
Kilometers per Liter to Miles per US Gallon

How to convert miles per us gallon to kilometers per liter

Miles per US Gallon and Kilometers per Liter aren’t a flat multiple of each other — fuel economy mixes efficiency (higher is better) and consumption (lower is better), which are inversely related. Use the formula below.

Formula
km/L = mpg (US) × 0.425144

For example:

  • →5 mpg (US) = 2.12572 km/L
  • →100 mpg (US) = 42.5144 km/L

Quick reference

  • ▸1 mpg (US) = 0.425144 km/L
  • ▸1 km/L = 2.35215 mpg (US)

When you need to convert mpg (US) to km/L

  • ·Comparing car efficiency across regions (mpg vs L/100 km).
  • ·Road-trip budgeting and fuel-cost estimates.
  • ·Buying a car abroad — spec sheets use local units.
  • ·Fleet management and logistics.
  • ·Tracking your own mileage over time.

Frequently asked

How many kilometers per liter are in 1 miles per us gallon?
These units don’t convert by a flat ratio, but 1 mpg (US) corresponds to 0.425144 km/L via the formula km/L = mpg (US) × 0.425144.
How do I convert mpg (US) to km/L in my head?
Use the formula km/L = mpg (US) × 0.425144 — there’s no single multiplier.
What is the formula for miles per us gallon to kilometers per liter?
km/L = mpg (US) × 0.425144.
What is the reverse — how many miles per us gallon in 1 kilometers per liter?
1 km/L corresponds to 2.35215 mpg (US) via the reverse formula.

Related conversions

Kilometers per Liter to Miles per US Gallon
1 km/L = 2.35215 mpg (US)
Miles per US Gallon to Miles per Imperial Gallon
1 mpg (US) = 1.20095 mpg (UK)
Miles per US Gallon to Liters per 100 km
1 mpg (US) = 235.215 L/100km
Miles per Imperial Gallon to Kilometers per Liter
1 mpg (UK) = 0.354006 km/L
Liters per 100 km to Kilometers per Liter
1 L/100km = 100 km/L
Kilometers per Liter to Miles per Imperial Gallon
1 km/L = 2.82481 mpg (UK)
Kilometers per Liter to Liters per 100 km
1 km/L = 100 L/100km
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