Cubic Feet per Hour (ft³/h) to Gallons per Minute (GPM) Flow Unit Conversion Calculator

This tool enables smooth integration of volumetric flow measurements across U.S. customary units by converting Cubic Feet per Hour (ft³/h) to Gallons per Minute (GPM). Perfect for industrial uses, water distribution, and HVAC fluid handling.

Definition: Cubic Feet per Hour (ft³/h)

A U.S. conventional unit, cubic feet per hour (ft\u00b3/h) gauges the volume of fluid flowing through a system over one hour represented in cubic feet. Common applications include bulk fluid movement systems, gas transmission, and HVAC airflows.

Key Applications of Cubic Feet per Hour (ft³/h):

• HVAC systems’ duct sizing and ventilation.
• Flow measurement in compressed gas pipe systems.
• Water distribution systems based on volumetric control.
• Bulk fluid transfer in industrial and utility facilities.

Definition: Gallons per Minute (GPM)

A U.S. conventional unit for measuring fluid flow on a per-minute basis, Gallons per Minute (GPM) is often used for pumps, flowmeters, irrigation, and general fluid transport operations.

Key Applications of Gallons per Minute (GPM):

• Pump performance monitoring and selection.
• Sprinkler systems and irrigation.
• Sizing filters and controlling process flow.
• Systems of emergency water supply and fire defense.
  

Formula for ft³/h to GPM Conversion

The formula below will help you to convert Cubic Feet per Hour (ft³/h) to Gallons per Minute (GPM):

Flow (GPM)=Flow (ft³/h)×0.124031

Explanation: 1 cubic foot = 7.48052 U.S. gallons, and 1 hour = 60 minutes, 

so:
ft³/h × 7.48052 ÷ 60 = ft³/h × 0.124031

Example Calculation

Convert 500 ft³/h to GPM:

500×0.124031=62.0155 GPM

Thus, roughly 62.02 Gallons per Minute results from a flow rate of 500 Cubic Feet per Hour.

Quick Reference Conversion Table

Uses of ft³/h to GPM Conversion

• In fluid systems, easily toggle between flow-based and volumetric units.
• Promote real-time monitoring, calibration, and pump selection.
• Consistent flow measurements help to study gas and liquid transfer.
• Include ft³/h-based measurements into GPM-centric controls.
• Assist operational optimization, safety checks, and process design.

Engineers, technicians, and system designers wishing to combine hourly volumetric data with per-minute flow rates for improved fluid control and system integration will find this conversion tool to be a useful tool.

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