Convert Gallons to Liters
Convert gallons to liters free and instantly. 1 gallon = 3.78541 L. Exact formula, worked example and a handy reference table.
To convert gallons to liters, multiply by 3.78541 (1 gallon = 3.78541 liters). For example, 10 gallons = 37.8541 liters.
Why convert gallons to liters?
Both gallons and liters measure volume, so converting between them is a simple multiplication: one gallon equals 3.78541 liters. Type any value into the converter above for an instant answer, or use the formula and reference table below.
Gallons to liters formula
Liters = gallons × 3.78541
Worked example: 10 gallons = 37.8541 liters.
Gallons to liters conversion table
| Gallons (gal) | Liters (L) |
|---|---|
| 1 | 3.78541 |
| 2 | 7.57082 |
| 3 | 11.35623 |
| 5 | 18.92705 |
| 10 | 37.8541 |
| 20 | 75.7082 |
| 50 | 189.2705 |
| 100 | 378.541 |
Gallons to Liters — frequently asked questions
How many liters are in a gallon?
One gallon equals 3.78541 liters. To convert any amount, multiply the number of gallons by 3.78541.
How do you convert gallons to liters?
Multiply by 3.78541: Liters = gallons × 3.78541. For example, 10 gallons = 37.8541 liters.
How do I convert liters back to gallons?
Do the reverse conversion — see our liters-to-gallons converter for the formula and an instant calculator.
Is this gallons-to-liters converter free?
Yes — it's completely free, instant and runs in your browser with no sign-up. Nothing you type is uploaded.