▸ processconvert
Flow Rate

L/stocfm

Convert litres per second (L/s) to cubic feet per minute (cfm).

Factor1 L/s = 2.11888 cfm

Converter

L/s

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

Result
105.944cfm

Rendered to 6 significant figures.

Formula

Formula
cfm = L/s × 2.11888

Multiply any value in litres per second by 2.11888 to obtain the value in cubic feet per minute.

Worked example

Convert 50 L/s to cfm.

  1. 01Start with 50 L/s.
  2. 02Multiply by the conversion factor: 50 × 2.11888 = 105.944 cfm.
Result50 L/s = 105.944 cfm

Conversion table

L/scfm
12.1189
24.2378
510.594
1021.189
2042.378
50105.94
100211.89
200423.78
5001059.4
10002118.9

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from L/s to cfm?
1 L/s equals 2.11888 cfm. To convert, multiply the value in litres per second by 2.11888.
How do I convert 1 L/s to cfm?
1 L/s = 2.11888 cfm. For any value, multiply by 2.11888.
How do I convert cfm back to L/s?
Divide by the same factor — or equivalently, multiply by 0.4719474. So 1 cfm = 0.471947 L/s.
When would I need to convert litre per second 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. L/s to cfm is a frequently needed conversion for hydraulic sizing.
Is the conversion exact?
Yes. Both L/s and cfm are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).

Related conversions