Gallons to Liters

To convert US gallons to liters, multiply by 3.78541. A 15-gallon tank holds about 57 liters, and a gallon of milk is just under 4 liters.

This tool uses the US liquid gallon; the imperial gallon used historically in the UK equals 4.546 liters. Liters are the international standard for volume and appear on bottles, engines and recipes worldwide. Convert the other way with the liters to gallons tool.