How to convert gallons (US) to liters
- Take the value in gallons (US).
- Use the formula liters = gallons (US) × 3.785411784.
- For example, 1 gal is 3.79 L.
About gallons and liters
Multiply US gallons by 3.785411784 to get liters. The factor is exact because the US gallon is defined as 231 cubic inches and the inch is exactly 2.54 cm.
Gas prices, milk jugs, aquariums and water heaters in the US are all in gallons. The UK gallon is larger at 4.54609 liters, so check which one a British source means before converting.
Examples
- 1 gal (a gallon jug of milk) is 3.79 L
- 5 gal (a water cooler jug or a bucket) is 18.93 L
- 15 gal (a typical US car fuel tank) is 56.78 L
- 55 gal (a standard steel drum) is 208.2 L
Gallons to liters chart
| Gallons (US) | Liters (L) |
|---|---|
| 0.25 | 0.946 |
| 0.5 | 1.89 |
| 1 | 3.79 |
| 2 | 7.57 |
| 3 | 11.36 |
| 4 | 15.14 |
| 5 | 18.93 |
| 6 | 22.71 |
| 7 | 26.5 |
| 8 | 30.28 |
| 9 | 34.07 |
| 10 | 37.85 |
| 12 | 45.42 |
| Gallons (US) | Liters (L) |
|---|---|
| 13 | 49.21 |
| 14 | 53 |
| 15 | 56.78 |
| 16 | 60.57 |
| 18 | 68.14 |
| 20 | 75.71 |
| 25 | 94.64 |
| 30 | 113.56 |
| 40 | 151.42 |
| 50 | 189.27 |
| 55 | 208.2 |
| 100 | 378.54 |