Cubic Meter per Hour to Gallon (US) per Minute (m³/h to GPM)
Convert m³/h to GPM — Flow Rate converter
Also written as m3/h to GPM.
One cubic meter per hour equals 4.402868 GPM, so to convert cubic meters per hour to gallons (US) per minute you multiply the value by 4.402868. A cubic meter per hour is larger than a gallon (US) per minute — going the other way, 1 GPM = 0.22712471 m³/h. For example, 10 m³/h = 44.028675 GPM and 50 m³/h = 220.143377 GPM.
1 m³/h = 4.402868 GPM
Cubic Meter per Hour to Gallon (US) per Minute formula
1 Cubic Meter per Hour = 4.402868 GPM
Worked examples
- 25 m³/h = 110.071688 GPM
- 100 m³/h = 440.286754 GPM
Cubic Meter per Hour to Gallon (US) per Minute conversion table
| Cubic Meter per Hour (m³/h) | Gallon (US) per Minute (GPM) |
|---|---|
| 1 | 4.402868 |
| 2 | 8.805735 |
| 3 | 13.208603 |
| 5 | 22.014338 |
| 8 | 35.22294 |
| 10 | 44.028675 |
| 12 | 52.83441 |
| 15 | 66.043013 |
| 20 | 88.057351 |
| 25 | 110.071688 |
| 50 | 220.143377 |
| 100 | 440.286754 |
| 250 | 1100.72 |
| 500 | 2201.43 |
| 1000 | 4402.87 |
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 m³/h = 4.402868 GPM.
Frequently asked questions
How many gallons (US) per minute are in one cubic meter per hour?
One cubic meter per hour equals 4.402868 gallons (US) per minute (GPM).
How many cubic meters per hour are in one gallon (US) per minute?
One gallon (US) per minute equals 0.22712471 cubic meters per hour (m³/h).
How do you convert cubic meters per hour to gallons (US) per minute?
1 Cubic Meter per Hour = 4.402868 GPM. Use the calculator above for any value.
What is 5 m³/h in GPM?
5 m³/h = 22.014338 GPM.
What is 100 m³/h in GPM?
100 m³/h = 440.286754 GPM.
What is 10 m³/h in GPM?
10 m³/h = 44.028675 GPM.
What is 20 m³/h in GPM?
20 m³/h = 88.057351 GPM.
What is 50 m³/h in GPM?
50 m³/h = 220.143377 GPM.
What is 500 m³/h in GPM?
500 m³/h = 2201.43 GPM.
Is a cubic meter per hour bigger than a gallon (US) per minute?
Yes. A cubic meter per hour is larger — one cubic meter per hour equals 4.402868 gallons (US) per minute (GPM).