Convert US Gallons (gal) to Liters (L)
Category: Volume
1 gal = 3.785412 l
Precision: 6 decimals; very small non-zero results use significant digits.
How to convert gallons to liters
Volume measures the space a substance occupies. SI uses cubic meters and liters; customary units like gallons, quarts, and pints persist in recipes, fuel, and containers. Accurate volume work often requires temperature and density considerations (e.g., for fuels).
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Quick conversion table
Handy values for US gallon (gal) to Liter (L). Click a value to calculate that result.
| US gallon (gal) | Liter (L) |
|---|---|
| 3.785412 | |
| 1.892706 | |
| 9.463529 | |
| 37.854118 |
Conversion formula
Use the following formula:
Liter (L) ≈ US gallon (gal) × 3.785411784
Convert volume from US gallon (gal) to Liter (L) using a fixed unit ratio. Round only the final result.
Common mistakes
- Mixing US gallons (3.785 L) with Imperial gallons (4.546 L).
- Assuming kitchen ‘cup’ equals the same volume in every country.
Unit facts
- US gallon (gal): The US gallon is exactly 3.785411784 L; used for fuel, beverages, and bulk liquids.
- Liter (L): One liter equals 1 dm³. Common for beverages, fuel, and many consumer goods.
About US gallon (gal)
US gallon (gal)
Exactly 3.785411784 L. Used for fuel, containers, and recipes in the US. Beware of imperial gallon differences.
History: US defined the gallon separately from the British imperial revision; modern value is exact.
About Liter (L)
Liter (L)
Equals 1 dm³; convenient for beverages, fuel, and appliance capacity. Interchangeable with 1,000 cm³. Widely recognized symbol ‘L’.
History: Originated in early metric definitions. Adoption accelerated with packaging standardization and consumer labeling.