Gallons to litres

Gallons (gal)

Litres (l)

Convert US gallons to litres.

Convert gallons to litres. Useful when comparing fuel consumption figures between mpg and L/100 km, or when scaling US and UK recipe volumes.

Frequently asked questions

1 US gallon is 3.785 litres; 1 UK (imperial) gallon is 4.546 litres.

10 US gallons is 37.85 litres; 10 UK gallons is 45.46 litres.

Divide 282.5 by the mpg figure. Example: 30 mpg → 282.5 ÷ 30 = 9.4 L/100 km.

No. Canada uses the metric system. Historically it used the UK imperial gallon (4.546 L), not the US gallon (3.785 L).