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Volumetric Flow Rate

cfmtoIGal/min

Convert cubic feet per minute (cfm) to Imperial gallons per minute (IGal/min).

Factor1 cfm = 6.228835 IGal/min

Converter

cfm

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

Result
6.22884IGal/min

Rendered to 6 significant figures.

Formula

Formula
IGal/min = cfm × 6.228835

Multiply any value in cubic feet per minute by 6.228835 to obtain the value in Imperial gallons per minute.

Worked example

Convert 1 cfm to IGal/min.

  1. 01Start with 1 cfm.
  2. 02Multiply by the conversion factor: 1 × 6.228835 = 6.22884 IGal/min.
Result1 cfm = 6.22884 IGal/min

Conversion table

cfmIGal/min
16.2288
212.458
531.144
1062.288
20124.58
50311.44
100622.88
2001245.8
5003114.4
10006228.8

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from cfm to IGal/min?
1 cfm equals 6.228835 IGal/min. To convert, multiply the value in cubic feet per minute by 6.228835.
How do I convert 1 cfm to IGal/min?
1 cfm = 6.22884 IGal/min. For any value, multiply by 6.228835.
How do I convert IGal/min back to cfm?
Divide by the same factor — or equivalently, multiply by 0.1605437. So 1 IGal/min = 0.160544 cfm.
When would I need to convert cubic foot per minute to Imperial 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. cfm to IGal/min 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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