Convert gallons to liters instantly. Enter a volume in US gallons to get the exact equivalent in liters — handy for fuel economy, water use and bulk liquids.
How to convert gallons to liters
One US gallon is 3.78541 liters, so to convert US gallons to liters you multiply by 3.78541.
Formula: liters = US gallons × 3.78541
Example: A 5-gallon water bottle holds 5 × 3.78541 = 18.93 liters. Five UK gallons would be 22.73 liters.
Tip: A US gallon is 4 quarts or 8 pints. Pints differ too: a US pint is 473 ml and a UK pint is 568 ml.
| US Gallon | Liter |
|---|---|
| 0.5 | 1.892705892 |
| 1 | 3.785411784 |
| 2 | 7.570823568 |
| 3 | 11.35623535 |
| 4 | 15.14164714 |
| 5 | 18.92705892 |
| 10 | 37.85411784 |
| 15 | 56.78117676 |
| 20 | 75.70823568 |
| 50 | 189.2705892 |
| 100 | 378.5411784 |
Need a different unit? The Volume Converter handles every common volume unit.