▸ processconvert
Volumetric Flow Rate

ft³/hrtogpm (US)

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

Factor1 ft³/hr = 0.1246753 gpm (US)

Converter

ft³/hr

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

Result
12.4675gpm (US)

Rendered to 6 significant figures.

Formula

Formula
gpm (US) = ft³/hr × 0.1246753

Multiply any value in cubic feet per hour by 0.1246753 to obtain the value in US gallons per minute.

Worked example

Convert 100 ft³/hr to gpm (US).

  1. 01Start with 100 ft³/hr.
  2. 02Multiply by the conversion factor: 100 × 0.1246753 = 12.4675 gpm (US).
Result100 ft³/hr = 12.4675 gpm (US)

Conversion table

ft³/hrgpm (US)
10.12468
20.24935
50.62338
101.2468
202.4935
506.2338
10012.468
20024.935
50062.338
1000124.68

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from ft³/hr to gpm (US)?
1 ft³/hr equals 0.1246753 gpm (US). To convert, multiply the value in cubic feet per hour by 0.1246753.
How do I convert 1 ft³/hr to gpm (US)?
1 ft³/hr = 0.124675 gpm (US). For any value, multiply by 0.1246753.
How do I convert gpm (US) back to ft³/hr?
Divide by the same factor — or equivalently, multiply by 8.020833. So 1 gpm (US) = 8.02083 ft³/hr.
When would I need to convert cubic foot per hour to US gallon per minute?
Flow-rate conversions show up in pump curve interpretation, control valve sizing (Cv vs Kv), and aligning vendor specifications with process simulation outputs. ft³/hr to gpm (US) 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