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Volumetric Flow Rate

IGal/hrtocfs

Convert Imperial gallons per hour (IGal/hr) to cubic feet per second (cfs).

Factor1 IGal/hr = 4.459546e-5 cfs

Converter

IGal/hr

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

Result
0.445955cfs

Rendered to 6 significant figures.

Formula

Formula
cfs = IGal/hr × 4.459546e-5

Multiply any value in Imperial gallons per hour by 4.459546e-5 to obtain the value in cubic feet per second.

Worked example

Convert 10000 IGal/hr to cfs.

  1. 01Start with 10000 IGal/hr.
  2. 02Multiply by the conversion factor: 10000 × 4.459546e-5 = 0.445955 cfs.
Result10000 IGal/hr = 0.445955 cfs

Conversion table

IGal/hrcfs
14.4595e-5
28.9191e-5
50.00022298
100.00044595
200.00089191
500.0022298
1000.0044595
2000.0089191
5000.022298
10000.044595

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from IGal/hr to cfs?
1 IGal/hr equals 4.459546e-5 cfs. To convert, multiply the value in Imperial gallons per hour by 4.459546e-5.
How do I convert 1 IGal/hr to cfs?
1 IGal/hr = 4.45955e-5 cfs. For any value, multiply by 4.459546e-5.
How do I convert cfs back to IGal/hr?
Divide by the same factor — or equivalently, multiply by 22423.81. So 1 cfs = 22423.8 IGal/hr.
When would I need to convert Imperial gallon per hour to cubic foot per second?
Flow-rate conversions show up in pump curve interpretation, control valve sizing (Cv vs Kv), and aligning vendor specifications with process simulation outputs. IGal/hr to cfs 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).

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