Convert Imperial gallons to liters
1 imperial gallon = 4.5461 liters · L = imp gal × 4.54609
When you need this conversion
This conversion goes from imperial gallons, the UK volume unit about 20 percent larger than a US gallon, to liters, the metric volume unit for fuel, drinks, and containers. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.
Imperial gallons to liters conversion table
| Imperial gallons (imp gal) | Liters (L) |
|---|---|
| 1 imp gal | 4.5461 L |
| 2 imp gal | 9.0922 L |
| 3 imp gal | 13.6383 L |
| 5 imp gal | 22.7305 L |
| 10 imp gal | 45.4609 L |
| 15 imp gal | 68.1913 L |
| 20 imp gal | 90.9218 L |
| 25 imp gal | 113.65 L |
| 50 imp gal | 227.3 L |
| 75 imp gal | 340.96 L |
| 100 imp gal | 454.61 L |
| 250 imp gal | 1,136.52 L |
| 500 imp gal | 2,273.05 L |
| 1,000 imp gal | 4,546.09 L |
The formula
L = imp gal × 4.54609Because both units measure volume, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.
Convert the other way
Liters to imperial gallons →Related volume conversions
- Cubic meters to liters
- US gallons to liters
- Milliliters to US cups
- Milliliters to US fluid ounces
- Liters to cubic meters
- Liters to US gallons
- Cubic meters to cubic feet
- Cubic feet to cubic meters
- US cups to milliliters
- US fluid ounces to milliliters
- Milliliters to liters
- Cubic feet to liters
Frequently asked questions
- How many liters are in a imperial gallon?
- There are 4.5461 liters in 1 imperial gallon. The formula is L = imp gal × 4.54609.
- How do you convert imperial gallons to liters?
- Use the formula L = imp gal × 4.54609. For example, 10 imperial gallons equals 45.4609 liters.
- Is the imperial gallons to liters conversion exact?
- Yes. Imperial gallons and liters are both units of volume, related by an exact defined factor. Displayed results are rounded for readability.
- What is imp gal short for?
- imp gal is the standard symbol for imperial gallon. L is the symbol for liter.