1 gallon (US) per minute [gpm] = 0.133681 cubic foot per minute [ft3/min]
Example: 1 gallon (US) per minute [gpm] equals 0.133681 cubic foot per minute [ft3/min].
Examples
1 gallon (US) per minute [gpm] = 0.133681 cubic foot per minute [ft3/min]
2 gallon (US) per minute [gpm] = 0.267361 cubic foot per minute [ft3/min]
5 gallon (US) per minute [gpm] = 0.668403 cubic foot per minute [ft3/min]
10 gallon (US) per minute [gpm] = 1.336806 cubic foot per minute [ft3/min]
20 gallon (US) per minute [gpm] = 2.673611 cubic foot per minute [ft3/min]
25 gallon (US) per minute [gpm] = 3.342014 cubic foot per minute [ft3/min]
Practical Uses for gallon us per minute to cubic foot per minute
quick homework checksshopping and product comparisonstravel planningprofessional estimatesDIY and household measurementsgeneral reference
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: 2026-05-21.
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 minute [ft3/min]
Definition
The cubic foot per minute (ft3/min) 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 minute 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 minute [ft3/min].
How do I convert gallon (US) per minute to cubic foot per minute?
Use this formula: 1 gallon (US) per minute [gpm] = 0.133681 cubic foot per minute [ft3/min] Enter your value in the calculator and the result updates instantly.
How many cubic foot per minute are in 1 gallon (US) per minute?
1 gallon (US) per minute [gpm] equals 0.133681 cubic foot per minute [ft3/min].
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.