m³/h to GPM Converter
Enter the flow rate in m³/h below to convert it to gpm.
Convert m³/h to GPM (US)
Enter a value in m³/h (m³/h) to convert to gpm (us) (GPM).
Cubic Meters per Hour to US Gallons per Minute Conversion Table
Table showing various cubic meters per hour measurements converted to gpm. Click any preset value or arrow to load it into the converter.
| m³/h (m³/h) | GPM (US) (GPM) |
|---|---|
| 1 m³/h | 4.4028675 GPM |
| 2 m³/h | 8.8057351 GPM |
| 2.5 m³/h | 11.0071688 GPM |
| 5 m³/h | 22.0143377 GPM |
| 10 m³/h | 44.0286754 GPM |
| 15 m³/h | 66.0430131 GPM |
| 20 m³/h | 88.0573508 GPM |
| 25 m³/h | 110.0716885 GPM |
| 30 m³/h | 132.0860262 GPM |
| 50 m³/h | 220.143377 GPM |
How to Convert m³/h to GPM
To convert m³/h to gpm, multiply the flow rate by the following conversion ratio: 4.4028675 gpm/cubic meters per hour.
Since one cubic meters per hour is equal to 4.4028675 gpm, you can use this simple formula to convert:
The flow rate in gpm is equal to the flow rate in m³/h multiplied by 4.4028675.
For example, here's how to convert 5 m³/h to gpm using the formula above.
How Many GPM Are in a Cubic Meters per Hour?
There are 4.4028675 gpm in a cubic meters per hour, which is why we use this value in the formula above.
Our cubic meters per hour to us gallons per minute calculator automatically converts your flow rate measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
m³/h and gpm are both units used to measure flow rate. Keep reading to learn more about each unit.
What Is a Cubic Meters per Hour?
A cubic meters per hour is a unit of flow rate equal to 16.6666667 liters per minute (L/min), the base unit for flow rate. Equal to 16.6667 L/min. [1]
The cubic meters per hour is classified as a metric and SI-compatible unit of flow rate. m³/h can be abbreviated as m³/h; for example, 1 cubic meters per hour can be written as 1 m³/h.
When working with m³/h (m³/h) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, m³/h (m³/h) are widely used across standard flow rate applications within SI metric workflows, engineering documentation, and technical data sheets.
What Is a US Gallons per Minute?
A us gallons per minute is a unit of flow rate equal to 3.7854118 liters per minute (L/min), the base unit for flow rate. Standard US plumbing & pump flow rate (3.78541 L/min). [2]
The us gallons per minute is classified as a US customary unit of flow rate. GPM can be abbreviated as GPM; for example, 1 us gallons per minute can be written as 1 GPM.
When working with gpm (GPM) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, gpm (GPM) are widely used across standard flow rate applications within US customary workflows, engineering documentation, and technical data sheets.
When converting flow rate between m³/h (m³/h) and gpm (GPM), keep full floating-point precision (1 m³/h = 4.4028675 GPM; 1 GPM = 0.2271247 m³/h) during intermediate calculations and round only the final us gallons per minute figure to match your instrument tolerance.
More Cubic Meters per Hour & US Gallons per Minute Conversions
Need to calculate in the opposite direction? Use our gpm (us) to m³/h converter (GPM to m³/h) to switch your starting unit immediately. You can also explore related tools such as converting liters per minute to gpm (us), converting gpm (us) to liters per minute, or converting cfh to liters per minute.
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Volume Divided by Time))·Flow Rate Metrology Standard — m³/h (m³/h) to GPM (US) (GPM)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Volume & Flow Capacity)·Unit Specifications: Cubic Meters per Hour (m³/h) & US Gallons per Minute (GPM) (GPM)
- [3]BIPM ReferenceBIPM (Coherent Volumetric Flow Units (m³/s))·Conversion Factors & Mathematical Basis (m³/h to GPM)