The short answer
- 1 US gal ≈ 3.785412 L
- 1 L ≈ 0.2641721 US gal
Worked example5 US gal × 3.785411784 = 18.92706 L
UNIT CONVERSION
← Volume converterUS gallons to litres
To convert US gallons to litres, multiply the number of US gallons by 3.785411784.
What the units mean
Us gallon. The US gallon is exactly 231 cubic inches, 3.785411784 litres. It is smaller than the UK (imperial) gallon.
Litre. The litre is one cubic decimetre, or 1,000 cubic centimetres.
US gallons to litres table
| Us gallons (US gal) | Litres (L) |
|---|---|
| 0.5 | 1.892706 |
| 1 | 3.785412 |
| 2 | 7.570824 |
| 3 | 11.35624 |
| 4 | 15.14165 |
| 5 | 18.92706 |
| 6 | 22.71247 |
| 7 | 26.49788 |
| 8 | 30.28329 |
| 9 | 34.06871 |
| 10 | 37.85412 |
| 12 | 45.42494 |
| 15 | 56.78118 |
| 20 | 75.70824 |
| 25 | 94.63529 |
| 30 | 113.5624 |
| 40 | 151.4165 |
| 50 | 189.2706 |
| 60 | 227.1247 |
| 70 | 264.9788 |
| 75 | 283.9059 |
| 80 | 302.8329 |
| 90 | 340.6871 |
| 100 | 378.5412 |
| 150 | 567.8118 |
| 200 | 757.0824 |
| 250 | 946.3529 |
| 500 | 1,892.706 |
| 1,000 | 3,785.412 |
Values are rounded to 7 significant figures.
Common questions
How do I convert US gallons to litres?
Multiply the number of US gallons by 3.785411784. For example, 5 US gal × 3.785411784 = 18.92706 L.
How many litres are in one US gallon?
One US gallon is about 3.785412 litres.
Is this conversion exact?
Yes. Both units have exact legal definitions, so the factor is exact. Values on this page are rounded to 7 significant figures.