🧪Volume

How to Convert Gallons to Liters

Converting gallons to liters is essential for international recipes, fuel calculations, and scientific measurements. This guide covers both US and UK gallon conversions.

1 min read
December 18, 2025
Updated: Jan 10, 2026
Fuel pump display showing liters and gallons for volume conversion

The Gallons to Liters Formula

To convert US gallons to liters, multiply by 3.78541.

Conversion Formula

Liters = US Gallons × 3.78541 Liters = UK Gallons × 4.54609 For quick estimation: Liters ≈ US Gallons × 4

Try the Calculator

Use our free Gallons (US) to Liters converter for instant, accurate results.

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Gallons to Liters Calculator

Convert any volume from gallons to liters:

🧮Quick Calculator

1 gal = 0 L

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Common Gallons to Liters Conversions

Quick reference table (US gallons):

US GallonsLitersContext
13.79Milk jug
27.572 milk jugs
518.95-gallon bucket
1037.9Gas tank
1556.8Large tank
2075.7Big container
55208Barrel

Frequently Asked Questions

A US gallon contains approximately 3.785 liters. A UK gallon contains approximately 4.546 liters.