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Fuel Economy
Miles per gallon (UK) to Liters per 100 kilometers
Convert miles per gallon (UK) (mpg (UK)) to liters per 100 kilometers (L/100km). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 mpg (UK) = 282.48 L/100km
Miles per gallon (UK) to Liters per 100 kilometers Conversion Table
Common values, ready to copy:
| miles per gallon (UK) | liters per 100 kilometers |
|---|---|
| 1 mpg (UK) | 282.48 L/100km |
| 2 mpg (UK) | 141.24 L/100km |
| 5 mpg (UK) | 56.4962 L/100km |
| 10 mpg (UK) | 28.2481 L/100km |
| 25 mpg (UK) | 11.2992 L/100km |
| 50 mpg (UK) | 5.6496 L/100km |
| 100 mpg (UK) | 2.8248 L/100km |
| 1,000 mpg (UK) | 0.282481 L/100km |
Formula
L/100km = 282.4811 ÷ mpg(UK)
Fuel economy can be expressed as distance per unit fuel (mpg, km/L, higher is better) or fuel per unit distance (L/100km, lower is better). They convert via inverse: mpg(US) × L/100km = 235.2146.
About Miles per gallon (UK) and Liters per 100 kilometers
Miles per gallon (UK) (mpg (UK)): Distance per UK imperial gallon (4.546 L, about 20% larger than the US gallon); the UK historically uses the imperial gallon, so UK mpg numbers look higher than US numbers for the same car. Common uses: UK vehicle specifications, UK car reviews, and historical British data.
Liters per 100 kilometers (L/100km): Standard fuel economy unit in metric countries; a measurement of fuel consumed per fixed distance (lower numbers are better). Common uses: EU and most non-US vehicle fuel economy ratings, fleet management, and shipping fuel-burn calculations.
How the conversion works
Fuel economy can be expressed as distance per unit fuel (mpg, km/L, higher is better) or fuel per unit distance (L/100km, lower is better). They convert via inverse: mpg(US) × L/100km = 235.2146.
The exact relationship is L/100km = 282.4811 ÷ mpg(UK), which the calculator at the top of this page applies in both directions. Type into either field and the other updates immediately.
When this conversion matters
Converting between miles per gallon (UK) and liters per 100 kilometers comes up wherever fuel economy measurements move between systems — from one country's conventions to another's, from a scientific reference to a practical specification, or from one industry's working unit to another's. The calculator and reference table above cover the everyday range; for unusual values you can type any number into either field.