# Cookbook:Gallon

Cookbook | Ingredients | Units of measurement

A **gallon** (the Queen Anne gallon, as used in the USA) is a unit of volume measure equal to 4 quarts. A gallon is approximately equal to 3.8 L.

The post-1824 British gallon is about 20% larger. The Queen Anne (USA) gallon is thus 16.7% smaller, or 5/6 the size of a British gallon.