How to convert us gallons to liters
- Type the value you want to convert.
- The result appears instantly. Use Swap units to reverse the direction.
- Choose other units from the lists if you need a different conversion.
Formula
L = gal (US) × 3.7854 and gal (US) = L × 0.2642.
Examples
2 gal (US) = 7.5708 L. 10 gal (US) = 37.8541 L. 20 gal (US) = 75.7082 L.
Quick reference table
| gal (US) | L |
|---|---|
| 0.25 gal (US) | 0.9464 L |
| 0.5 gal (US) | 1.8927 L |
| 1 gal (US) | 3.7854 L |
| 2 gal (US) | 7.5708 L |
| 5 gal (US) | 18.9271 L |
| 10 gal (US) | 37.8541 L |
| 15 gal (US) | 56.7812 L |
| 20 gal (US) | 75.7082 L |
| 25 gal (US) | 94.6353 L |
| 50 gal (US) | 189.2706 L |
And the other way: L to gal (US)
| L | gal (US) |
|---|---|
| 1 L | 0.2642 gal (US) |
| 5 L | 1.3209 gal (US) |
| 10 L | 2.6417 gal (US) |
| 25 L | 6.6043 gal (US) |
| 50 L | 13.2086 gal (US) |
| 100 L | 26.4172 gal (US) |
When you need this conversion
Fuel tank sizes, fuel economy figures, paint and water containers from the USA are given in gallons. Converting to liters helps you compare them with metric specifications.
Frequently asked questions
How many L is 1 gal (US)?
1 gal (US) equals 3.7854 L. In the other direction, 1 L equals 0.2642 gal (US).
How many liters is 1 US gallon?
1 gal (US) is 3.7854 L.
What is the formula to convert us gallons to liters?
Multiply the number of gal (US) by 3.7854 to get L. To go back, multiply L by 0.2642.
Is this converter free and private?
Yes. It is free, needs no sign-up and runs in your browser, so the numbers you enter are not sent anywhere.
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Last updated: November 6, 2026