Gallon to Liter Converter

Enter a volume in US gallons and instantly get the equivalent in liters. One US gallon equals approximately 3.78541 liters.

Common Gallon to Liter conversions

Gallon (gal) Liter (L)
0.5 gal 1.89271 L
1 gal 3.78541 L
2 gal 7.57082 L
5 gal 18.9271 L
10 gal 37.8541 L
15 gal 56.7812 L
20 gal 75.7082 L
50 gal 189.27 L
100 gal 378.541 L

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Frequently Asked Questions

How many liters are in a gallon?

One US gallon equals approximately 3.78541 liters. Note: a UK (imperial) gallon equals 4.54609 liters.

How do I convert gallons to liters?

Multiply the number of US gallons by 3.78541. For example, 5 gallons × 3.78541 = 18.927 liters.