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Volumetric Flow Rate

cfmtomL/s

Convert cubic feet per minute (cfm) to millilitres per second (mL/s).

Factor1 cfm = 471.9474 mL/s

Converter

cfm

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

Result
471.947mL/s

Rendered to 6 significant figures.

Formula

Formula
mL/s = cfm × 471.9474

Multiply any value in cubic feet per minute by 471.9474 to obtain the value in millilitres per second.

Worked example

Convert 1 cfm to mL/s.

  1. 01Start with 1 cfm.
  2. 02Multiply by the conversion factor: 1 × 471.9474 = 471.947 mL/s.
Result1 cfm = 471.947 mL/s

Conversion table

cfmmL/s
1471.95
2943.89
52359.7
104719.5
209438.9
5023597
10047195
20094389
5002.3597e+5
10004.7195e+5

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from cfm to mL/s?
1 cfm equals 471.9474 mL/s. To convert, multiply the value in cubic feet per minute by 471.9474.
How do I convert 1 cfm to mL/s?
1 cfm = 471.947 mL/s. For any value, multiply by 471.9474.
How do I convert mL/s back to cfm?
Divide by the same factor — or equivalently, multiply by 0.00211888. So 1 mL/s = 0.00211888 cfm.
When would I need to convert cubic foot per minute to millilitre 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 mL/s 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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