Gallons to Liters Converter
Convert US gallons (gal (US)) to liters (L) as you type — 1 gal (US) = 3.785412 L. Switch units, change the precision or copy the result.
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How to use this tool
Steps for using the Unit Converter.
- Enter a value in From — US gallons are already selected.
- The result in liters appears instantly. Change either unit to convert to anything else in volume.
- Use the swap button for the reverse conversion, and set the decimal places you need.
- Turn on Show formula to see the calculation, then copy or share the result.
Example
1 gal (US) to L
1 gal (US)L = 1 × 3.785411784 = 3.785412 LCommon use cases
- Recipes that use cups, fluid ounces or milliliters.
- Fuel and liquids sold in liters, US gallons or UK gallons.
- Tank, pool and container capacities in liters and cubic meters.
Gallons to Liters conversion table
| US gallon (gal (US)) | Liter (L) |
|---|---|
| 0.1 gal (US) | 0.378541 L |
| 0.5 gal (US) | 1.892706 L |
| 1 gal (US) | 3.785412 L |
| 2 gal (US) | 7.570824 L |
| 3 gal (US) | 11.356235 L |
| 4 gal (US) | 15.141647 L |
| 5 gal (US) | 18.927059 L |
| 10 gal (US) | 37.854118 L |
| 15 gal (US) | 56.781177 L |
| US gallon (gal (US)) | Liter (L) |
|---|---|
| 20 gal (US) | 75.708236 L |
| 25 gal (US) | 94.635295 L |
| 50 gal (US) | 189.270589 L |
| 75 gal (US) | 283.905884 L |
| 100 gal (US) | 378.541178 L |
| 250 gal (US) | 946.352946 L |
| 500 gal (US) | 1,892.705892 L |
| 1,000 gal (US) | 3,785.411784 L |
Values rounded to 6 decimal places.
Related conversions
The units
- US gallon (gal (US))
- 231 in³ = exactly 3.785411784 L. Part of the US customary system.
- Liter (L)
- 1 dm³ = 1/1000 m³. Part of the Metric system.
How to convert US gallons to liters
US gallons, as used for fuel and milk in the US. For UK gallons choose “Imperial gallon” — the result is about 20% higher.
To convert US gallons to liters, use L = gal (US) × 3.785411784. One US gallon equals 3.785412 liters, and one liter equals 0.264172 US gallons.
US gallon (gal (US)): 231 in³ = exactly 3.785411784 L. Liter (L): 1 dm³ = 1/1000 m³.
For the opposite direction, use the Liters to gallons converter. All volume units are on the volume converter.
Limitations
- Results are rounded to the decimal places you choose; the calculation itself keeps full precision.
Frequently asked questions
How many liters are in a US gallon?
1 gal (US) = 3.785412 L. Multiply US gallons by 3.785411784 (or use L = gal (US) × 3.785411784).
How do I convert US gallons to liters?
Use L = gal (US) × 3.785411784. For example, 1 gal (US) = 3.7854 L and 10 gal (US) = 37.8541 L.
How many liters are in a gallon?
A US gallon is 3.785 L; an imperial (UK) gallon is 4.546 L. Pick the right one in the converter — the difference is about 20%.
Is a mL the same as a cm³?
Yes, exactly. A milliliter is one cubic centimeter, and a liter is 1,000 cm³.