Gallon (US) per Minute to Gallon (UK) per Minute (GPM to imp gal/min)
Convert GPM to imp gal/min — Flow Rate converter
One gallon (US) per minute equals 0.83267393 imp gal/min, so to convert gallons (US) per minute to gallons (UK) per minute you multiply the value by 0.83267393. A gallon (US) per minute is smaller than a gallon (UK) per minute — going the other way, 1 imp gal/min = 1.20095 GPM. For example, 10 GPM = 8.326739 imp gal/min and 50 GPM = 41.633696 imp gal/min.
1 GPM = 0.83267393 imp gal/min
Gallon (US) per Minute to Gallon (UK) per Minute formula
1 Gallon (US) per Minute = 0.83267393 imp gal/min
Worked examples
- 25 GPM = 20.816848 imp gal/min
- 100 GPM = 83.267393 imp gal/min
Gallon (US) per Minute to Gallon (UK) per Minute conversion table
| Gallon (US) per Minute (GPM) | Gallon (UK) per Minute (imp gal/min) |
|---|---|
| 1 | 0.83267393 |
| 2 | 1.665348 |
| 3 | 2.498022 |
| 5 | 4.16337 |
| 8 | 6.661391 |
| 10 | 8.326739 |
| 12 | 9.992087 |
| 15 | 12.490109 |
| 20 | 16.653479 |
| 25 | 20.816848 |
| 50 | 41.633696 |
| 100 | 83.267393 |
| 250 | 208.168482 |
| 500 | 416.336964 |
| 1000 | 832.673928 |
Which gallon, and which trade
The single most expensive mistake in flow conversion is the gallon. A US liquid gallon is 3.785411784 litres; an imperial gallon is 4.54609 litres. US GPM and imperial GPM differ by about 20%, and pump datasheets frequently do not say which one they mean. Check the manufacturer's country of origin before trusting a GPM figure.
Different trades default to different units for the same physical quantity: HVAC and compressed air work in CFM, plumbing and pumps in GPM or LPM, and process and water engineering in m³/h or L/s. A specification that mixes them is usually quoting different equipment, not different flows. On this page, 1 GPM = 0.83267393 imp gal/min.
Frequently asked questions
How many gallons (UK) per minute are in one gallon (US) per minute?
One gallon (US) per minute equals 0.83267393 gallons (UK) per minute (imp gal/min).
How many gallons (US) per minute are in one gallon (UK) per minute?
One gallon (UK) per minute equals 1.20095 gallons (US) per minute (GPM).
How do you convert gallons (US) per minute to gallons (UK) per minute?
1 Gallon (US) per Minute = 0.83267393 imp gal/min. Use the calculator above for any value.
What is 5 GPM in imp gal/min?
5 GPM = 4.16337 imp gal/min.
What is 100 GPM in imp gal/min?
100 GPM = 83.267393 imp gal/min.
What is 10 GPM in imp gal/min?
10 GPM = 8.326739 imp gal/min.
What is 20 GPM in imp gal/min?
20 GPM = 16.653479 imp gal/min.
What is 50 GPM in imp gal/min?
50 GPM = 41.633696 imp gal/min.
What is 500 GPM in imp gal/min?
500 GPM = 416.336964 imp gal/min.
Is a gallon (US) per minute bigger than a gallon (UK) per minute?
No. A gallon (US) per minute is smaller — one gallon (US) per minute equals 0.83267393 gallons (UK) per minute, while one gallon (UK) per minute equals 1.20095 gallons (US) per minute.