1 Gallon to Liters Converter

1 Gallon to Liters

Quick answer: 1 gallon = 3.7854 liters. This page shows you how to convert 1 gallon to liters with the formula, examples, and a handy conversion table for nearby values.

How to Convert 1 Gallon to Liters

Formula: liters = gallons × 3.78541

Calculation:
1 × 3.78541 = 3.7854 L

Result: 1 gallon = 3.7854 liters

1 Gallon in Liters

1 gallon equals
3.7854
liters
1 gal × 3.78541 = 3.7854 L

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Gallons to Liters Conversion Table (Around 1 Gallon)

GallonsLiters
0.250.9464
0.51.8927
0.752.8391
13.7854
GallonsLiters
1.55.6781
27.5708
311.3562

Understanding 1 Gallon

1 Gallon in Context

1 US gallon equals 3.7854 liters. This is different from the Imperial gallon used in the UK, which equals 4.546 liters. A US gallon of water weighs approximately 8.34 pounds.

Quick Reference

1 gallon = 3.7854 L = 3,785.41 ml

Also equals 4 quarts, 8 pints, 16 cups, or 128 fluid ounces.

Frequently Asked Questions

What is 1 gallon in liters?
1 US gallon equals approximately 3.7854 liters (exactly 3.785411784 liters).
How do you convert 1 gallon to liters?
Multiply 1 by 3.78541. The calculation is: 1 × 3.78541 = 3.7854 liters.
Is a US gallon the same as a UK gallon?
No. A US gallon equals 3.785 liters, while a UK (Imperial) gallon equals 4.546 liters. The Imperial gallon is about 20% larger.
How many cups in a gallon?
There are 16 US cups in 1 US gallon.
How much does a gallon of water weigh?
A US gallon of water weighs approximately 8.34 pounds (3.785 kg) at room temperature.