Gallons to Liters Converter
Convert US or imperial gallons to liters and milliliters.
3.78541
3785.4 mL
1 US gal = 3.78541 L
Quick reference (US gal → L)
0.25 gal0.94635 L
0.5 gal1.89271 L
1 gal3.78541 L
2 gal7.57082 L
5 gal18.92705 L
10 gal37.8541 L
20 gal75.7082 L
55 gal208.19755 L
Gallons to liters conversion
The US liquid gallon is 3.78541 liters. The imperial (UK) gallon is 4.54609 liters — about 20% larger. A US gallon = 128 fl oz; a UK gallon = 160 fl oz. Note: gas prices in the US use US gallons, while Canada and the UK use liters (Canada) or UK gallons (UK fuel economy ratings). Need the reverse? Use the liters to gallons converter.
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