US Gallon vs. Imperial (UK) Gallon to Liters (L) Comparison Chart

This chart illustrates the significant volume difference between a US liquid gallon and an Imperial (UK) gallon, showing their respective capacities in metric liters (L). Essential for large-scale recipes and international trade.

Unit	Liters (L) (approx.)	Composition Notes
1 US Liquid Gallon	3.785 L	4 US Quarts / 8 US Pints / 128 US Fluid Ounces
1 Imperial (UK) Gallon	4.546 L	4 Imperial Quarts / 8 Imperial Pints / 160 Imperial Fluid Ounces
Difference (Imperial - US)	0.761 L (761 ml)	An Imperial gallon is about 20% larger.

1/2 US Liquid Gallon	1.893 L	2 US Quarts
1/2 Imperial (UK) Gallon	2.273 L	2 Imperial Quarts

Key Differences:

A **US liquid gallon** is approximately 3.785 liters.
An **Imperial (UK) gallon** is approximately 4.546 liters, making it roughly 20% larger than a US gallon.
This distinction is critical for any recipe or process involving large volumes of liquid when converting between US and UK/Commonwealth standards.
The US also has a "dry gallon" (approx. 4.405 L), used for measuring dry goods like grains or fruit, which is different from the liquid gallon discussed here.
For comprehensive kitchen measurement tools, visit kitchencalculator.app.