1 US gallon to liters
1 gal = 3.785412 L. Change the amount below, or read the formula and the reference table further down.
1 US gallon equals
liters
1 gal = 3.785412 L
The formula
US gallons and liters both measure volume from the same zero, so a single multiplier does the job.
L = gal × 3.78541178
Going the other way? Convert liters to US gallons.
US gallons to liters table
Values either side of 1 gal.
| US gallons (gal) | Liters (L) |
|---|---|
| -4 | -15.1416 |
| -3.5 | -13.2489 |
| -3 | -11.3562 |
| -2.5 | -9.4635 |
| -2 | -7.5708 |
| -1.5 | -5.6781 |
| -1 | -3.7854 |
| -0.5 | -1.8927 |
| 0 | 0 |
| 0.5 | 1.8927 |
| 1 | 3.7854 |
| 1.5 | 5.6781 |
| 2 | 7.5708 |
| 2.5 | 9.4635 |
| 3 | 11.3562 |
| 3.5 | 13.2489 |
| 4 | 15.1416 |
| 4.5 | 17.0344 |
| 5 | 18.9271 |
| 5.5 | 20.8198 |
| 6 | 22.7125 |
Questions people ask
- How many liters are in a US gallon?
- One US gallon equals 3.78541178 liters.
- How do I convert US gallons to liters by hand?
- Multiply the number of US gallons by 3.78541178. For a rough check, 3.8 is close enough for most everyday use.
- What is 1 US gallon in liters?
- 1 US gallon is 3.785412 liters.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.