Formula
US gpm to m³/h conversion formula
Use this relationship for a direct conversion:
Worked example
2 US gpm = 0.4542494141 m³/h.
Unit conversion does not account for compressibility, pressure, or temperature effects on actual fluid volume.
Volume Flow Rate conversion
1 us gallon per minute (US gpm) equals 0.22712470704 cubic meter per hour (m³/h). Enter any value below to convert from US gpm to m³/h.
Enter a value and choose units. Results update instantly.
1 US gpm = 0.227124707 m³/h
| Unit | Value |
|---|---|
| Cubic meter per second m³/s | 0.0000630902 |
| Cubic meter per hour m³/h | 0.227124707 |
| Liter per second L/s | 0.0630901964 |
| Liter per minute L/min | 3.785411784 |
| US gallon per minute US gpm | 1 |
| Imperial gallon per minute imp gpm | 0.8326741846 |
| Cubic foot per minute cfm | 0.1336805556 |
Formula
Use this relationship for a direct conversion:
2 US gpm = 0.4542494141 m³/h.
Unit conversion does not account for compressibility, pressure, or temperature effects on actual fluid volume.
Quick reference
| US gallon per minute (US gpm) | Cubic meter per hour (m³/h) |
|---|---|
| 0.01 | 0.0022712471 |
| 0.1 | 0.0227124707 |
| 1 | 0.227124707 |
| 2 | 0.4542494141 |
| 5 | 1.1356235352 |
| 10 | 2.2712470704 |
| 25 | 5.678117676 |
| 50 | 11.356235352 |
| 100 | 22.712470704 |
| 1,000 | 227.12470704 |
From unit
One US liquid gallon per minute.
Symbol: US 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 = US gpm x 0.22712470704. 1 us gallon per minute (US gpm) equals 0.22712470704 cubic meter per hour (m³/h).
Both unit definitions use exact factors. Only the displayed decimal may be rounded.