How do you convert imperial gallons to liters?
To convert imperial gallons to liters, multiply the number of imperial gallons by 4.54609. 1 imp gal = 4.54609 L.
Liter = Imperial Gallon × 4.54609
Imperial gallons are not US gallons
An Imperial gallon is used in the British Imperial system and equals exactly 4.54609 liters. It is larger than a US liquid gallon, which equals 3.78541 liters.
Check the source before converting fuel economy, container capacity or a recipe. A label that says only 'gallon' can be ambiguous when the country or measurement system is not stated.
Important: Use this page for Imperial or UK gallons. For US liquid gallons, use the US gallons converter below.
Related tools
Imperial Gallons to liters conversion table
| Imperial Gallons (imp gal) | Liters (L) |
|---|---|
| 1 imp gal | 4.54609 L |
| 2 imp gal | 9.09218 L |
| 5 imp gal | 22.7304 L |
| 10 imp gal | 45.4609 L |
| 20 imp gal | 90.9218 L |
| 50 imp gal | 227.304 L |
| 100 imp gal | 454.609 L |
What is Imperial Gallon?
Imperial Gallon is a volume unit used for liquids, containers, storage and technical capacity calculations.
Short history of Imperial Gallon
The imperial gallon was introduced by the British Weights and Measures Act of 1824, originally defined as the volume of 10 pounds of water. Today it is exactly 4.54609 liters.
Open the Imperial Gallon unit guideWhat is Liter?
The liter is a widely used volume unit for liquids and capacities. One liter equals 0.001 cubic meters.
Short history of Liter
The liter was introduced in France in 1795 as one cubic decimeter. From 1901 to 1964 it was defined by the mass of water, which made it slightly larger; since 1964 it is again exactly one cubic decimeter.
Open the Liter unit guideFrequently asked questions
What is 1 Imperial Gallon in Liter?
1 imp gal = 4.54609 L.
How do you convert Imperial Gallon to Liter?
To convert imperial gallons to liters, multiply the number of imperial gallons by 4.54609. 1 imp gal = 4.54609 L.
Frequently asked questions
How many liters are in 1 imperial gallon?
1 imp gal = 4.54609 L.
How do you convert imperial gallons to liters?
To convert imperial gallons to liters, multiply the number of imperial gallons by 4.54609. 1 imp gal = 4.54609 L.
How many imperial gallons are in 1 liter?
1 L = 0.219969 imp gal.