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Volumetric Flow Rate

cfmtocfs

Convert cubic feet per minute (cfm) to cubic feet per second (cfs).

Factor1 cfm = 0.01666667 cfs

Converter

cfm

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

Result
10cfs

Rendered to 6 significant figures.

Formula

Formula
cfs = cfm × 0.01666667

Multiply any value in cubic feet per minute by 0.01666667 to obtain the value in cubic feet per second.

Worked example

Convert 600 cfm to cfs.

  1. 01Start with 600 cfm.
  2. 02Multiply by the conversion factor: 600 × 0.01666667 = 10 cfs.
Result600 cfm = 10 cfs

Conversion table

cfmcfs
10.016667
20.033333
50.083333
100.16667
200.33333
500.83333
1001.6667
2003.3333
5008.3333
100016.667

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from cfm to cfs?
1 cfm equals 0.01666667 cfs. To convert, multiply the value in cubic feet per minute by 0.01666667.
How do I convert 1 cfm to cfs?
1 cfm = 0.0166667 cfs. For any value, multiply by 0.01666667.
How do I convert cfs back to cfm?
Divide by the same factor — or equivalently, multiply by 60. So 1 cfs = 60 cfm.
When would I need to convert cubic foot per minute 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. cfm 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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