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Volume

Gallons to Liters Converter

Convert US gallons (gal) to liters (L). 1 gal = 3.785411784 L, and 1 L = 0.2641720524 gal.

1 gal = 3.785411784 L

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Formula

L = gal × 3.785411784

How to convert

To convert US gallons to liters, multiply the value by 3.785411784. For example, 2 gal = 7.570823568 L.

Conversion table

Gallons (gal) Liters (L)
0.5 gal 1.892705892 L
1 gal 3.785411784 L
2 gal 7.570823568 L
3 gal 11.35623535 L
4 gal 15.14164714 L
5 gal 18.92705892 L
10 gal 37.85411784 L
20 gal 75.70823568 L
25 gal 94.6352946 L
50 gal 189.2705892 L
100 gal 378.5411784 L
1,000 gal 3,785.411784 L

About these units

One liter is 1,000 milliliters, or one cubic decimeter. US customary units are defined from the cubic inch: 1 US gallon = 231 cubic inches = 3.785411784 L, 1 US fluid ounce = 29.5735295625 mL and 1 US cup = 8 fl oz = 236.5882365 mL. The UK imperial gallon (4.54609 L) and fluid ounce (28.4130625 mL) are different, and US nutrition labels round a cup to 240 mL.

FAQ

› How do I convert gal to L?

1 gal = 3.785411784 L. To convert, multiply the value by 3.785411784: 2 gal = 7.570823568 L.

› What is 1 L in gal?

1 L = 0.2641720524 gal. The reverse formula is gal = L ÷ 3.785411784.

› How many milliliters are in a cup?

A US customary cup is 236.59 mL. Nutrition labels use 240 mL, a metric cup is 250 mL and a UK imperial cup is 284 mL.

› Are US and UK gallons the same?

No. A US gallon is 3.785 L and an imperial (UK) gallon is 4.546 L, about 20% larger. These pages use US units.