To convert liters per second to cubic feet per minute, multiply by 2.118880003.
The calculation uses 1 L/s = 2.118880003 CFM. Results are displayed to at most 10 significant digits. Definitions can be exact while a displayed decimal is rounded. Match the displayed precision to your original measurement.
The formula
value in CFM = value in L/s × 2.118880003
L/s- Input unit: liters per second
CFM- Output unit: cubic feet per minute
How to use this calculator
- Enter a value in L/s.
- Multiply by the stored conversion factor.
- Read the result in CFM; divide by the same factor to convert back.
Worked examples
Worked conversion
1 L/s × 2.118880003 ≈ 2.118880003 CFM.
Reverse conversion
2.118880003 CFM ÷ 2.118880003 ≈ 1 L/s. Rounding intermediate values can change the last displayed digit.
Frequently asked questions
What factor does this converter use?
It uses 2.118880003 CFM per L/s.
Why can another converter show a slightly different answer?
Check the unit convention first (such as US versus Imperial or decimal versus binary), then compare rounding. Measurement uncertainty is separate from the unit conversion.
L/s to CFM table
| L/s | CFM (rounded) |
|---|---|
| 0 | 0 |
| 1 | 2.118880003 |
| 2 | 4.237760007 |
| 5 | 10.59440002 |
| 10 | 21.18880003 |
| 100 | 211.8880003 |
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