Convert Cubic feet per hour to US gallons per minute
Convert Cubic feet per hour (ft³/h) to US gallons per minute (gpm) instantly and accurately.
Conversion Formula
gpm = ft³/h × 0.1246753247
About Cubic feet per hour
The cubic foot per hour (ft³/h) equals 0.028316846592/3600 ≈ 7.866×10⁻⁶ m³/s, used in US natural-gas metering (residential gas meters read in cubic feet; billing converts to CCF = 100 ft³) and historical furnace-fuel-consumption tables. A US residential gas furnace consumes 80-200 ft³/h of natural gas at full fire. 1 ft³/h ≈ 7.866×10⁻⁶ m³/s.
About US gallons per minute
The US gallon per minute (gpm) equals 3.785411784×10⁻³/60 ≈ 6.309×10⁻⁵ m³/s, the dominant volumetric flow unit in US plumbing, HVAC, and water-treatment industries. EPA showerhead standards are set at 2.5 gpm; residential water meters size at 3/4"-1" for 5-20 gpm; municipal water-distribution design uses hundreds to thousands of gpm. 1 gpm ≈ 6.309×10⁻⁵ m³/s = 3.785 L/min.
Quick Reference Table
| Cubic feet per hour (ft³/h) | US gallons per minute (gpm) |
|---|---|
| 1 ft³/h | 0.124675 gpm |
| 2 ft³/h | 0.249351 gpm |
| 5 ft³/h | 0.623377 gpm |
| 10 ft³/h | 1.24675 gpm |
| 25 ft³/h | 3.11688 gpm |
| 50 ft³/h | 6.23377 gpm |
| 100 ft³/h | 12.4675 gpm |