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Volumetric Flow Rate

IGal/mintocfm

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

Factor1 IGal/min = 0.1605437 cfm

Converter

IGal/min

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

Result
1.60544cfm

Rendered to 6 significant figures.

Formula

Formula
cfm = IGal/min × 0.1605437

Multiply any value in Imperial gallons per minute by 0.1605437 to obtain the value in cubic feet per minute.

Worked example

Convert 10 IGal/min to cfm.

  1. 01Start with 10 IGal/min.
  2. 02Multiply by the conversion factor: 10 × 0.1605437 = 1.60544 cfm.
Result10 IGal/min = 1.60544 cfm

Conversion table

IGal/mincfm
10.16054
20.32109
50.80272
101.6054
203.2109
508.0272
10016.054
20032.109
50080.272
1000160.54

Reference values rounded to 5 significant figures for display.

FAQ

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