CFH to GPM Converter
Enter the flow rate in cfh below to convert it to gpm.
Convert CFH to GPM (US)
Enter a value in cfh (CFH) to convert to gpm (us) (GPM).
Cubic Feet per Hour to US Gallons per Minute Conversion Table
Table showing various cubic feet per hour measurements converted to gpm. Click any preset value or arrow to load it into the converter.
| CFH (CFH) | GPM (US) (GPM) |
|---|---|
| 1 CFH | 0.1246753 GPM |
| 2 CFH | 0.2493506 GPM |
| 2.5 CFH | 0.3116883 GPM |
| 5 CFH | 0.6233766 GPM |
| 10 CFH | 1.2467532 GPM |
| 15 CFH | 1.8701299 GPM |
| 20 CFH | 2.4935065 GPM |
| 25 CFH | 3.1168831 GPM |
| 30 CFH | 3.7402597 GPM |
| 50 CFH | 6.2337662 GPM |
How to Convert CFH to GPM
To convert cfh to gpm, multiply the flow rate by the following conversion ratio: 0.1246753 gpm/cubic feet per hour.
Since one cubic feet per hour is equal to 0.1246753 gpm, you can use this simple formula to convert:
The flow rate in gpm is equal to the flow rate in cfh multiplied by 0.1246753.
For example, here's how to convert 5 cfh to gpm using the formula above.
How Many GPM Are in a Cubic Feet per Hour?
There are 0.1246753 gpm in a cubic feet per hour, which is why we use this value in the formula above.
Our cubic feet 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.
CFH and gpm are both units used to measure flow rate. Keep reading to learn more about each unit.
What Is a Cubic Feet per Hour?
A cubic feet per hour is a unit of flow rate equal to 0.4719474 liters per minute (L/min), the base unit for flow rate. Gas meter flow unit (0.47195 L/min). [1]
The cubic feet per hour is classified as a US customary unit of flow rate. CFH can be abbreviated as CFH; for example, 1 cubic feet per hour can be written as 1 CFH.
When working with cfh (CFH) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, cfh (CFH) are widely used across standard flow rate applications within US customary 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 cfh (CFH) and gpm (GPM), keep full floating-point precision (1 CFH = 0.1246753 GPM; 1 GPM = 8.0208333 CFH) during intermediate calculations and round only the final us gallons per minute figure to match your instrument tolerance.
More Cubic Feet per Hour & US Gallons per Minute Conversions
Need to calculate in the opposite direction? Use our gpm (us) to cfh calculator to switch your starting unit immediately. You can also explore related tools such as converting gpm (us) to cfh, converting liters per minute to gpm (us), 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 — CFH (CFH) to GPM (US) (GPM)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Volume & Flow Capacity)·Unit Specifications: Cubic Feet per Hour (CFH / SCFH) (CFH) & US Gallons per Minute (GPM) (GPM)
- [3]BIPM ReferenceBIPM (Coherent Volumetric Flow Units (m³/s))·Conversion Factors & Mathematical Basis (CFH to GPM)