US gallons per minute to Cubic meters per hour Converter
1 GPM equals 0.22712471 m3/h, and 1 m3/h equals 4.4028675 GPM. Enter a value in either box to convert us gallons per minute to cubic meters per hour and back. Formula: cubic meters per second = value x unit factor (1 GPM = 3.785411784 L / 60 s; 1 m3/h = 1/3,600 m3/s).
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1 GPM = 0.22712471 m3/h
Results shown are estimates for informational purposes only. Nothing on CalcFlow is financial, tax, legal, or medical advice. Always consult a qualified professional before making important decisions.
US gallons per minute to Cubic meters per hour Conversion Table
| US gallons per minute | Cubic meters per hour |
|---|---|
| 1 GPM | 0.22712471 m3/h |
| 2 GPM | 0.45424941 m3/h |
| 5 GPM | 1.1356235 m3/h |
| 10 GPM | 2.2712471 m3/h |
| 20 GPM | 4.5424941 m3/h |
| 50 GPM | 11.356235 m3/h |
| 100 GPM | 22.712471 m3/h |
| 500 GPM | 113.56235 m3/h |
| 1,000 GPM | 227.12471 m3/h |
Cubic meters per hour to US gallons per minute Conversion Table
| Cubic meters per hour | US gallons per minute |
|---|---|
| 1 m3/h | 4.4028675 GPM |
| 2 m3/h | 8.8057351 GPM |
| 5 m3/h | 22.014338 GPM |
| 10 m3/h | 44.028675 GPM |
| 20 m3/h | 88.057351 GPM |
| 50 m3/h | 220.14338 GPM |
| 100 m3/h | 440.28675 GPM |
| 500 m3/h | 2,201.4338 GPM |
| 1,000 m3/h | 4,402.8675 GPM |
Worked example: 10 GPM = 2.2712471 m3/h. A pump rated at 10 GPM moves 10 x 3.785411784 = 37.85 liters per minute, which is 2.27 cubic meters per hour.
Need other units? Open the full Flow Rate Converter.
Popular Flow Rate Conversions
Formula
cubic meters per second = value x unit factor (1 GPM = 3.785411784 L / 60 s; 1 m3/h = 1/3,600 m3/s)Understanding Flow Rate Conversion
Flow rate is volume per unit of time. Plumbing and pumps in the US are rated in gallons per minute, while metric plumbing uses liters per minute or cubic meters per hour. Air handling uses cubic feet per minute, and rivers are measured in cubic meters or cubic feet per second. The same number means different things for US and UK gallons, so check which one a pump label uses.
Tips and Best Practices
- 1Multiply US gallons per minute by 3.785 to get liters per minute.
- 2Divide cubic meters per hour by 3.6 to get liters per second.
- 3Shower heads in the US are limited to about 2.5 GPM, roughly 9.5 L/min.
Real-World Example
A pump rated at 10 GPM moves 10 x 3.785411784 = 37.85 liters per minute, which is 2.27 cubic meters per hour.
Common Mistakes to Avoid
- Mixing US and UK GPM.
- Confusing m3/h with m3/s, a factor of 3,600.
- Reading a pump curve at the wrong head or pressure rather than the quoted flow.
How to Use
- Type a number in the US gallons per minute box.
- The Cubic meters per hour result appears instantly; you can also edit the Cubic meters per hour box to convert backwards.
- Use the swap button to reverse the direction and Copy result to copy the answer.
Frequently Asked Questions
How many cubic meters per hour are in 1 GPM?
How many us gallons per minute are in 1 m3/h?
What is the formula to convert us gallons per minute to cubic meters per hour?
How do I convert m3/h to L/min?
Sources: NIST SP 811 (US gallon, cubic foot); UK imperial gallon = 4.54609 L.