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Home/Converters/Everyday & geometry/Volume/US gallon → Liter

US gallon to Liter

Convert US gallons to liters for metric recipes, fuel purchases, and lab volumes.

Everyday & geometry

  • Volume
  • Capacity
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Conversion factor

1 gal (US) = 3.785411784 LBoth units are converted through Cubic meter as the shared base.

How US gallon to Liter works

Multiply US gallons by 3.785411784 to get liters. Five US gallons equal about 18.927 liters. UK imperial gallons are larger—this converter uses the US liquid gallon.

Common US gallon to Liter conversions

US gallonLiter
1 gal (US)3.785411784 L
2 gal (US)7.570823568 L
5 gal (US)18.92705892 L
10 gal (US)37.85411784 L
15 gal (US)56.78117676 L
20 gal (US)75.70823568 L

Common questions

How many liters are in 1 US gallon?
1 US gallon = 3.785411784 liters.
How many liters are in 5 gallons?
5 US gallons ≈ 18.927 liters.

Related conversions

  • Liter → US gallon
  • Milliliter → US fluid ounce
  • US fluid ounce → Milliliter

Convert Liter to US gallon

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