American specs use US gallons. Almost everywhere else uses liters, and older British sources use imperial gallons, which are a different size.
- 1 US gallon = 3.785 liters
- 1 liter = 0.264 US gallons
- 1 imperial gallon = 4.546 liters, about 20% more than a US gallon
Common tank sizes
| US gallons | Liters | Imperial gallons |
|---|---|---|
| 10 | 37.9 | 8.3 |
| 12 | 45.4 | 10.0 |
| 14 | 53.0 | 11.7 |
| 16 | 60.6 | 13.3 |
| 18 | 68.1 | 15.0 |
| 20 | 75.7 | 16.7 |
| 24 | 90.8 | 20.0 |
| 26 | 98.4 | 21.6 |
| 36 | 136.3 | 30.0 |
For anything else, use the gallons and liters converter.
