Formula
imp gpm to US gpm conversion formula
Use this relationship for a direct conversion:
Worked example
2 imp gpm = 2.401899851 US gpm.
Unit conversion does not account for compressibility, pressure, or temperature effects on actual fluid volume.
Volume Flow Rate conversion
1 imperial gallon per minute (imp gpm) equals 1.200949925505 us gallon per minute (US gpm). Enter any value below to convert from imp gpm to US gpm.
Enter a value and choose units. Results update instantly.
1 imp gpm = 1.2009499255 US gpm
| Unit | Value |
|---|---|
| Cubic meter per second m³/s | 0.0000757682 |
| Cubic meter per hour m³/h | 0.2727654 |
| Liter per second L/s | 0.0757681667 |
| Liter per minute L/min | 4.54609 |
| US gallon per minute US gpm | 1.2009499255 |
| Imperial gallon per minute imp gpm | 1 |
| Cubic foot per minute cfm | 0.1605436532 |
Formula
Use this relationship for a direct conversion:
2 imp gpm = 2.401899851 US gpm.
Unit conversion does not account for compressibility, pressure, or temperature effects on actual fluid volume.
Quick reference
| Imperial gallon per minute (imp gpm) | US gallon per minute (US gpm) |
|---|---|
| 0.01 | 0.0120094993 |
| 0.1 | 0.1200949926 |
| 1 | 1.2009499255 |
| 2 | 2.401899851 |
| 5 | 6.0047496275 |
| 10 | 12.009499255 |
| 25 | 30.0237481376 |
| 50 | 60.0474962752 |
| 100 | 120.0949925505 |
| 1,000 | 1,200.9499255049 |
From unit
One Imperial gallon per minute.
Symbol: imp gpm
To unit
One US liquid gallon per minute.
Symbol: US gpm
Keep converting
Source
Definitions are checked against NIST SP 811 and exact volume definitions. Calculations use full internal precision before display rounding.
View the complete volume flow rate converterQuestions
Use the formula US gpm = imp gpm x 1.200949925505. 1 imperial gallon per minute (imp gpm) equals 1.200949925505 us gallon per minute (US gpm).
Both unit definitions use exact factors. Only the displayed decimal may be rounded.