📏 Imperial gallons to Liters Converter
Convert imperial gallons (imp gal) to liters (L) instantly, with the formula, a worked example and a conversion table.
Quick answer: 1 imperial gallon (imp gal) = 4.54609 liters (L). Formula: L = imp gal × 4.54609.
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Imperial gallons to Liters Converter inputs
Result
Imperial gallons to Liters conversion table
| Imperial gallons (imp gal) | Liters (L) |
|---|---|
| 0.1 imp gal | 0.454609 L |
| 0.5 imp gal | 2.273045 L |
| 1 imp gal | 4.54609 L |
| 2 imp gal | 9.09218 L |
| 3 imp gal | 13.63827 L |
| 5 imp gal | 22.73045 L |
| 10 imp gal | 45.4609 L |
| 20 imp gal | 90.9218 L |
| 25 imp gal | 113.65225 L |
| 50 imp gal | 227.3045 L |
| 100 imp gal | 454.609 L |
| 1,000 imp gal | 4,546.09 L |
Other volume conversions
imp gal to mLimp gal to Limp gal to m³imp gal to tspimp gal to tbspimp gal to fl ozimp gal to cupimp gal to ptimp gal to qtimp gal to gal
How to convert imperial gallons to liters
Multiply the number of imperial gallons by 4.54609 to get liters: L = imp gal × 4.54609.
Example: 5 imp gal = 22.73045 L.
The imperial gallon (imp gal) and the liter (L) are both units of volume. Need the opposite direction? Use the L to imp gal converter.
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Metric and imperial units
The metric system (SI) is used by almost every country and by science worldwide. Its units scale by powers of ten – 1 kilometer is 1,000 meters, 1 meter is 100 centimeters – which makes conversions inside the system easy. The imperial and US customary systems (inches, feet, pounds, gallons) are still used daily in the United States and partly in the UK.
Since 1959 the inch has been defined as exactly 2.54 centimeters and the pound as exactly 0.45359237 kilograms, so conversions between the two systems are exact. Note that a US gallon (3.785 L) and an imperial gallon (4.546 L) are different – choose the right one above.
This converter covers 10 categories and 66 units: length, weight, temperature, volume, area, speed, time, data, energy, pressure.
Frequently asked questions
How many liters are in a imperial gallon?
1 imperial gallon = 4.54609 liters.
How do I convert imperial gallons to liters?
Use the formula L = imp gal × 4.54609. For example, 5 imp gal = 22.73045 L.
How do I convert liters back to imperial gallons?
1 liter = 0.21996925 imperial gallons. Use the L to imp gal converter linked on this page.
Are these conversions exact?
Yes – all factors use the internationally defined values (for example 1 inch = 2.54 cm exactly, 1 pound = 0.45359237 kg exactly). Results are rounded to 8 significant digits for display.