Imperial gallons to US gallons formula
us gallons = imperial gallons × 1.20095
Multiply the number of imperial gallons by 1.20095 to get us gallons. To go the other way, multiply by 0.832674 instead, or use the gallons to imperial gallons converter.
Imperial gallons to US gallons conversion table
Common imperial gallons to gallons values, rounded for reading. The converter above keeps full precision.
| Imperial gallons | US gallons |
|---|---|
| 1 imp gal | 1.20095 US gal |
| 2 imp gal | 2.4019 US gal |
| 3 imp gal | 3.60285 US gal |
| 4 imp gal | 4.8038 US gal |
| 5 imp gal | 6.00475 US gal |
| 10 imp gal | 12.0095 US gal |
| 15 imp gal | 18.0142 US gal |
| 20 imp gal | 24.019 US gal |
| 25 imp gal | 30.0237 US gal |
| 50 imp gal | 60.0475 US gal |
| 75 imp gal | 90.0712 US gal |
| 100 imp gal | 120.095 US gal |
| 250 imp gal | 300.237 US gal |
| 500 imp gal | 600.475 US gal |
| 1,000 imp gal | 1,200.95 US gal |
Worked example
To convert 10 imp gal to us gallons, multiply by 1.20095: the result is 12.0095 US gal. US and Imperial gallons are different sizes. This converter labels them separately to prevent a common conversion mistake.
Frequently asked questions
How many us gallons are in a imperial gallon?
One imperial gallon equals 1.20095 us gallons (1 imp gal = 1.20095 US gal).
What is 10 imperial gallons in us gallons?
10 imp gal converts to 12.0095 US gal. Enter any other value in the converter above to see it recalculated instantly.
How do I convert us gallons back to imperial gallons?
Reverse the calculation: one us gallon equals 0.832674 imperial gallons. You can also swap the units in the converter or open the gallons to imperial gallons page.
Related volume conversions
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