1 gallon (US) per minute [gpm] = 8.020833 cubic foot per hour [ft3/h]
Example: 1 gallon (US) per minute [gpm] equals 8.020833 cubic foot per hour [ft3/h].
Examples
1 gallon (US) per minute [gpm] = 8.020833 cubic foot per hour [ft3/h]
2 gallon (US) per minute [gpm] = 16.041667 cubic foot per hour [ft3/h]
5 gallon (US) per minute [gpm] = 40.104167 cubic foot per hour [ft3/h]
10 gallon (US) per minute [gpm] = 80.208333 cubic foot per hour [ft3/h]
20 gallon (US) per minute [gpm] = 160.416667 cubic foot per hour [ft3/h]
25 gallon (US) per minute [gpm] = 200.520833 cubic foot per hour [ft3/h]
Practical Uses for gallon us per minute to cubic foot per hour
pumps and plumbingHVAC airflowirrigation systemsindustrial process flow
Sources and Accuracy
Flow rate conversions use cubic meter per second as the reference unit and include common pump, plumbing, HVAC, and process-flow units.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-08-14.
About These Units
gallon (US) per minute [gpm]
Definition
US gallons per minute measures volume flow rate in US liquid gallons each minute.
History
GPM developed from customary liquid volume measurement used in plumbing and pumping.
Current use
GPM is used for faucets, pumps, fire protection, irrigation, pools, and water-treatment systems.
cubic foot per hour [ft3/h]
Definition
The cubic foot per hour (ft3/h) is a flow rate unit used to express measurements in this converter.
History
This unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current use
Use cubic foot per hour when comparing flow rate values, checking specifications, converting between systems, or preparing quick estimates.
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How to Convert
Enter the value in the “From value” field.
Confirm the source unit is gallon (US) per minute [gpm].
Confirm the target unit is cubic foot per hour [ft3/h].
Read the instant result and formula.
Where This Conversion Is Used
pumps and plumbingHVAC airflowirrigation systemsindustrial process flow
gallon us per minute to cubic foot per hour Conversion Chart
How do I convert gallon (US) per minute to cubic foot per hour?
Use this formula: 1 gallon (US) per minute [gpm] = 8.020833 cubic foot per hour [ft3/h] Enter your value in the calculator and the result updates instantly.
How many cubic foot per hour are in 1 gallon (US) per minute?
1 gallon (US) per minute [gpm] equals 8.020833 cubic foot per hour [ft3/h].
Can I reverse this conversion?
Yes. Use the swap button in the calculator or open the related reverse conversion link when it is listed on this page.