Formula
imp gpm to m³/h conversion formula
Use this relationship for a direct conversion:
Worked example
2 imp gpm = 0.5455308 m³/h.
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 0.2727654 cubic meter per hour (m³/h). Enter any value below to convert from imp gpm to m³/h.
Enter a value and choose units. Results update instantly.
1 imp gpm = 0.2727654 m³/h
| 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 = 0.5455308 m³/h.
Unit conversion does not account for compressibility, pressure, or temperature effects on actual fluid volume.
Quick reference
| Imperial gallon per minute (imp gpm) | Cubic meter per hour (m³/h) |
|---|---|
| 0.01 | 0.002727654 |
| 0.1 | 0.02727654 |
| 1 | 0.2727654 |
| 2 | 0.5455308 |
| 5 | 1.363827 |
| 10 | 2.727654 |
| 25 | 6.819135 |
| 50 | 13.63827 |
| 100 | 27.27654 |
| 1,000 | 272.7654 |
From unit
One Imperial gallon per minute.
Symbol: imp gpm
To unit
One cubic meter distributed over one hour.
Symbol: m³/h
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 m³/h = imp gpm x 0.2727654. 1 imperial gallon per minute (imp gpm) equals 0.2727654 cubic meter per hour (m³/h).
Both unit definitions use exact factors. Only the displayed decimal may be rounded.