Convert Imperial Gallons to Liters
1 imperial gallon = 4.54609 liters. Multiply the number of imperial gallons by 4.54609.
1 gal = 4.54609 L
Multiply the number of imperial gallons by 4.54609.
Results are rounded for display. Double-check values for critical work.
Imperial Gallons to Liters table
| Imperial Gallons | Liters |
|---|---|
| 1 gal | 4.54609 L |
| 2 gal | 9.09218 L |
| 3 gal | 13.63827 L |
| 4 gal | 18.18436 L |
| 5 gal | 22.73045 L |
| 10 gal | 45.4609 L |
| 20 gal | 90.9218 L |
| 25 gal | 113.65225 L |
| 50 gal | 227.3045 L |
| 100 gal | 454.609 L |
| 500 gal | 2,273.045 L |
| 1000 gal | 4,546.09 L |
Imperial Gallons to Liters in your head
Multiply by 9, then divide by 2.
That lands within 1% of the exact value.
10 gal → 45 L in your head, 45.4609 L exactly.
About these units
The imperial gallon (gal) is an imperial unit of volume & capacity, equal to 0.00454609 cubic meters.
The liter (L) is a metric unit of volume & capacity, equal to 0.001 cubic meters.
Going the other way, 1 liter = 0.21996925 imperial gallons. A US gallon and an imperial gallon differ by about 20%, and the same is true right down to teaspoons. This converter keeps the two systems separate and explicit so a recipe or a fuel figure never comes out a fifth wrong.
Frequently asked
- How many liters are in a imperial gallon?
- 1 imperial gallon = 4.54609 liters.
- How do you convert imperial gallons to liters?
- Multiply the number of imperial gallons by 4.54609.
- What is 10 gal in L?
- 10 gal = 45.4609 L.