Volume Converter Calculator

Volume conversions span cooking (cups, tablespoons), fuel (gallons, liters) and science (cubic meters).

What this calculator does

1 US gallon = 3.785 liters = 128 fl oz = 16 cups. 1 liter = 33.81 fl oz.

Frequently asked questions

How many liters in a gallon?

1 US gallon = 3.78541 liters. 1 Imperial gallon = 4.54609 liters.