UnitFlip

Liters per 100 Kilometers to Miles per US Gallon Converter

mpg (US) = 235.2145833 ÷ L/100 km

From

An inverse measure: 5 L/100 km is twice as efficient as 10 L/100 km, not half.

To

US mpg figures are about 17% lower than imperial mpg for the same car, because the US gallon is smaller.

Result

1 liter per 100 kilometers equals 235.215 miles per US gallon

How to convert liters per 100 kilometers to miles per US gallon

Distance per fuel (mpg or km/L) increases with economy; fuel per distance (L/100 km) decreases. Converting between these forms is reciprocal, requires a positive value and depends on whether a gallon is US or Imperial.

Formula
mpg (US) = 235.2145833 ÷ L/100 km

These units run in opposite directions: one measures distance per unit of fuel and the other fuel per unit of distance. Dividing 235.2145833 by the liter per 100 kilometers figure gives the mile per US gallon figure, and dividing it back returns the original — which is why a lower number is better on one scale and worse on the other.

Example
29.4018 mpg (US) ≈ 235.2145833 ÷ 8

An inverse measure: 5 L/100 km is twice as efficient as 10 L/100 km, not half.

US mpg figures are about 17% lower than imperial mpg for the same car, because the US gallon is smaller.

Liters per 100 kilometers to miles per US gallon conversion table

Common values in liters per 100 kilometers, converted to miles per US gallon.

Liters per 100 kilometers converted to miles per US gallon
Liters per 100 kilometers (L/100 km)Miles per US gallon (mpg (US))
378.404861
458.803646
547.042917
639.202431
733.602083
829.401823
926.134954
1023.521458
1219.601215
1515.680972

About these units

liter per 100 kilometersL/100 km

Fuel used to travel 100 kilometres. Lower is better. The European standard.

mile per US gallonmpg (US)

Distance per US gallon. The US fuel-economy standard.

Sources and precision

Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.