Convert Gallons (US) to Liters
One gallon (US) equals 3.785412 liters. Type any value to convert gallons (us) to liters instantly — with a full reference table below.
Convert Gallons (US) to Liters
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How to convert Gallons (US) to Liters
To convert gallons (us) to liters, multiply by 3.785412. One gallon (US) equals 3.785412 L, and one liter equals 0.264172 gal.
- Take the value in gallons (us) — for example 7.5 gal.
- Multiply by 3.785412 (the number of liters in one gallon (US)).
- 7.5 × 3.785412 = 28.39059 L.
Quick mental estimate: Multiply the number of gallons (us) by 3.8 (within 0.4% of the exact answer).
Gallons (US) to Liters conversion table
| Gallons (US) | Liters |
|---|---|
| 1 gal | 3.785412 L |
| 2 gal | 7.570824 L |
| 3 gal | 11.35624 L |
| 4 gal | 15.14165 L |
| 5 gal | 18.92706 L |
| 6 gal | 22.71247 L |
| 8 gal | 30.28329 L |
| 10 gal | 37.85412 L |
| 12 gal | 45.42494 L |
| 16 gal | 60.56659 L |
| 20 gal | 75.70824 L |
| 24 gal | 90.84988 L |
| 32 gal | 121.1332 L |
| 50 gal | 189.2706 L |
| 100 gal | 378.5412 L |
| Liters | Gallons (US) |
|---|---|
| 1 L | 0.264172 gal |
| 2 L | 0.528344 gal |
| 3 L | 0.792516 gal |
| 4 L | 1.056688 gal |
| 5 L | 1.32086 gal |
| 6 L | 1.585032 gal |
| 8 L | 2.113376 gal |
| 10 L | 2.641721 gal |
| 12 L | 3.170065 gal |
| 16 L | 4.226753 gal |
| 20 L | 5.283441 gal |
| 24 L | 6.340129 gal |
| 32 L | 8.453506 gal |
| 50 L | 13.2086 gal |
| 100 L | 26.41721 gal |
About converting Gallons (US) to Liters
Gallons (US) (gal) and Liters (L) are both units of volume. The exact factor is 1 gal = 3.785412 L, so multiply by 3.785412 to go from gallons (us) to liters (or divide to go back).
The conversion runs entirely in your browser. Need the reverse? Use the Liters to Gallons (US) converter, or the full unit converter for every unit at once.
Real-world volume in gallons (us) and liters
| Example | Gallons (US) | Liters |
|---|---|---|
| A US soda can (12 fl oz) | 0.09375 gal | 0.354882 L |
| A wine bottle | 0.198129 gal | 0.75 L |
| A US gallon of milk | 1 gal | 3.785412 L |
| A typical car fuel tank | ≈ 13.2086 gal | ≈ 50 L |
| A typical bathtub | ≈ 39.62581 gal | ≈ 150 L |
“≈” marks typical values; the rest are defined or measured figures.
The units
The US liquid gallon: 231 cubic inches, exactly 3.785411784 L. (The UK imperial gallon is larger: 4.54609 L.)
Used for: US fuel and milk.
One cubic decimetre (0.001 m³).
Used for: Drinks, fuel and engine size in most countries.
US customary volumes are exact by definition: the US gallon is 231 cubic inches, which is exactly 3.785411784 litres.