How Many Liters Are in a US Gallon?

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One US liquid gallon equals approximately 3.785 liters.

How Many Liters Are in a US Gallon: explained

For quick estimates, multiply gallons by 3.785.

Two US gallons are about 7.57 liters.

Useful reference

US liquid conversion ladder: 1 gallon = 4 quarts = 8 pints = 16 cups = 128 fluid ounces. These are measures of volume. The weight of a gallon depends on what liquid is being measured.

When the answer can differ

Do not confuse US liquid gallons with imperial gallons.

Common questions

What should I remember?

One US liquid gallon equals approximately 3.785 liters.

What is an easy mistake to avoid?

Do not confuse US liquid gallons with imperial gallons.

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