Gallons to Liters Converter

Convert between gallons and liters with precision. Supports both US and UK gallons.

Volume Converter

1 US gallon = 3.78541 liters

US gal
L

Common US Gallon to Liter Conversions

US GallonsLiters
13.785
518.927
1037.854
2075.708
50189.270

Quick Reference

US Gallon

1 US gal = 3.78541 L

Used in United States

UK Gallon

1 UK gal = 4.54609 L

Used in United Kingdom

Volume Relationships

1 Gallon =4 Quarts
1 Gallon =8 Pints
1 Gallon =16 Cups
1 Gallon =128 fl oz
1 Liter =1000 ml

Usage Tips

Use US gallons for American recipes and fuel consumption

Use UK gallons for British measurements

Liters are part of the metric system

Always specify gallon type for accuracy

Understanding Gallon to Liter Conversions

What is a Gallon?

A gallon is a unit of volume measurement used primarily in the United States and United Kingdom. However, the US gallon and UK (Imperial) gallon are different sizes, which is important to remember when converting between gallons and liters.

Gallon Types

  • US Gallon: 3.78541 liters (smaller)
  • UK Gallon: 4.54609 liters (larger)
  • UK gallon is about 20% larger than US gallon

What is a Liter?

A liter is a unit of volume in the metric system. It's widely used around the world and is the standard unit for measuring liquids in most countries. One liter is equal to 1,000 milliliters or 1 cubic decimeter.

Conversion Formulas

US Gallons to Liters:

Liters = Gallons × 3.78541

UK Gallons to Liters:

Liters = Gallons × 4.54609

Practical Applications

Cooking & Recipes

Converting recipe measurements between different measurement systems

Fuel Consumption

Converting fuel efficiency between miles per gallon and liters per 100km

Water Management

Pool capacity, irrigation systems, and water storage calculations