Gallons (US) to Liters Converter
Convert gal to L instantly — and see every other volume unit at once.
1 gal=3.7854 L
1 gal in every unit
Milliliters
3,785.41ml
Liters
3.7854L
Cubic meters
0.003785m³
Cubic centimeters
3,785.41cm³
Cubic inches
230.9999in³
Cubic feet
0.13368ft³
Fluid ounces (US)
128.0001fl oz
Cups (US)
16cup
Pints (US)
8pt
Quarts (US)
4qt
Gallons (US)from
1gal
Gallons (UK)
0.832674gal (UK)
Common Gallons (US) to Liters conversions
| Gallons (US) (gal) | Liters (L) |
|---|---|
| 1 gal | 3.78541 L |
| 2 gal | 7.57082 L |
| 3 gal | 11.35623 L |
| 5 gal | 18.92705 L |
| 10 gal | 37.8541 L |
| 15 gal | 56.78115 L |
| 20 gal | 75.7082 L |
| 25 gal | 94.63525 L |
| 50 gal | 189.2705 L |
The formula
Gallons (US) are used for fuel, containers, and liquid measurement in the United States.
Liters are the standard metric unit for liquid volume — fuel, beverages, and containers.
Worked examples
1 gal→3.785 L— 1 US gallon
Apply gal × 3.78541 with input = 1. Result: 3.785 L.
5 gal→18.93 L— 5 gallons
Apply gal × 3.78541 with input = 5. Result: 18.93 L.
10 gal→37.85 L— Tank fill
Apply gal × 3.78541 with input = 10. Result: 37.85 L.
20 gal→75.71 L— 20 gallons
Apply gal × 3.78541 with input = 20. Result: 75.71 L.
FAQ
How do I convert Gallons (US) to Liters?
Use the formula: L = gal × 3.78541. You can also use the converter above — type any value and the result updates instantly.
Where are Gallons (US) used?
Gallons (US) are used for fuel, containers, and liquid measurement in the United States.
Where are Liters used?
Liters are the standard metric unit for liquid volume — fuel, beverages, and containers.
How do I convert Liters back to Gallons (US)?
Use the Liters to Gallons (US) converter.