Convert UK Gallons to Gallons
1 imp gal = 1.20095 gal. Enter any value below.
Converted to every unit
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UK Gallons to Gallons formula
gal = imp gal × 1.20095
An imperial (UK) gallon is exactly 4.54609 liters. A US gallon is 231 cubic inches, exactly 3.785411784 liters.
Worked example
To convert 5 imp gal, multiply by 1.20095: 5 imp gal × 1.20095 = 6.00475 gal.
UK Gallons to Gallons conversion table
| UK Gallons | Gallons |
|---|---|
| 1 imp gal | 1.20095 gal |
| 2 imp gal | 2.4019 gal |
| 3 imp gal | 3.60285 gal |
| 4 imp gal | 4.8038 gal |
| 5 imp gal | 6.00475 gal |
| 6 imp gal | 7.2057 gal |
| 7 imp gal | 8.406649 gal |
| 8 imp gal | 9.607599 gal |
| 9 imp gal | 10.808549 gal |
| 10 imp gal | 12.009499 gal |
| 12 imp gal | 14.411399 gal |
| 15 imp gal | 18.014249 gal |
| 20 imp gal | 24.018999 gal |
| 25 imp gal | 30.023748 gal |
| 30 imp gal | 36.028498 gal |
| 40 imp gal | 48.037997 gal |
| 50 imp gal | 60.047496 gal |
| 75 imp gal | 90.071244 gal |
| 100 imp gal | 120.094993 gal |
| 250 imp gal | 300.237481 gal |
| 500 imp gal | 600.474963 gal |
| 1,000 imp gal | 1,200.9499 gal |
Frequently asked questions
How many gallons are in a gallon (uk)?
1 imp gal equals 1.20095 gal.
How do I convert uk gallons to gallons?
Use the formula gal = imp gal × 1.20095. For example, 5 imp gal = 6.00475 gal.
Last reviewed: October 2026 · Uses exact, internationally defined conversion factors.