Conversion Formula
$$m³/h = GPM \times 0.227125$$
Multiply the value in US Gallon per Minute by 0.227125 to get Cubic Meter per Hour.
GPM to m³/h Conversion Table
| US Gallon per Minute (GPM) | Cubic Meter per Hour (m³/h) |
|---|---|
| 0.1 | 0.0227125 |
| 0.5 | 0.113562 |
| 1 | 0.227125 |
| 2 | 0.454249 |
| 5 | 1.13562 |
| 10 | 2.27125 |
| 25 | 5.67812 |
| 50 | 11.3562 |
| 100 | 22.7125 |
| 250 | 56.7812 |
| 500 | 113.562 |
| 1,000 | 227.125 |
GPM to m³/h in Engineering
Flow rate conversions are critical for water resources, wastewater treatment, HVAC, and piping design. Civil engineers commonly work with GPM, CFS, and MGD, while mechanical engineers often need CFM for air handling systems.
US Gallon per Minute: Most common US unit for piping, pump, and plumbing flow rates. Essential for fire protection design.
Cubic Meter per Hour: Common metric unit for water supply and HVAC systems. Used internationally for pump specifications.