Convert Gallons to Liters
Gallons (US) to Liters (l) — the formula, a worked example and a live converter, all in your browser.
Gallons to Liters formula
To convert a measurement, multiply it by the fixed factor below:
l = US × 3.785411784
Worked example
1 US = 1 × 3.785411784 = 3.785411784 l.
Gallons to Liters conversion table
| Gallons (US) | Liters (l) |
|---|---|
| 1 | 3.785411784 |
| 5 | 18.92705892 |
| 10 | 37.85411784 |
| 25 | 94.6352946 |
| 50 | 189.2705892 |
| 100 | 378.5411784 |
Common uses
Useful for converting US fuel economy, aquarium volumes and container sizes into litres.
Related conversions
Need a different pair? Use the full unit converter for length, weight, temperature, volume, speed, area and more.
Frequently asked questions
What is the formula to convert gallons to liters?
Multiply the number of gallons by 3.785411784 to get liters (l = US × 3.785411784).
How many liters are in a gallon?
One gallon equals 3.785411784 liters.
Is this converter accurate?
Yes. It uses the exact internationally-defined conversion factors and runs entirely in your browser, so results match standards tables and nothing you type is uploaded.