▸ processconvert
Volumetric Flow Rate

gpm (US)toft³/hr

Convert US gallons per minute (gpm (US)) to cubic feet per hour (ft³/hr).

Factor1 gpm (US) = 8.020833 ft³/hr

Converter

gpm (US)

Accepts numbers or expressions, e.g. 150 + 14.7

Result
802.083ft³/hr

Rendered to 6 significant figures.

Formula

Formula
ft³/hr = gpm (US) × 8.020833

Multiply any value in US gallons per minute by 8.020833 to obtain the value in cubic feet per hour.

Worked example

Convert 100 gpm (US) to ft³/hr.

  1. 01Start with 100 gpm (US).
  2. 02Multiply by the conversion factor: 100 × 8.020833 = 802.083 ft³/hr.
Result100 gpm (US) = 802.083 ft³/hr

Conversion table

gpm (US)ft³/hr
18.0208
216.042
540.104
1080.208
20160.42
50401.04
100802.08
2001604.2
5004010.4
10008020.8

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from gpm (US) to ft³/hr?
1 gpm (US) equals 8.020833 ft³/hr. To convert, multiply the value in US gallons per minute by 8.020833.
How do I convert 1 gpm (US) to ft³/hr?
1 gpm (US) = 8.02083 ft³/hr. For any value, multiply by 8.020833.
How do I convert ft³/hr back to gpm (US)?
Divide by the same factor — or equivalently, multiply by 0.1246753. So 1 ft³/hr = 0.124675 gpm (US).
When would I need to convert US gallon per minute to cubic foot per hour?
Flow-rate conversions show up in pump curve interpretation, control valve sizing (Cv vs Kv), and aligning vendor specifications with process simulation outputs. gpm (US) to ft³/hr is a frequently needed conversion for flow datasheet preparation.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

Related conversions