Conversion tool
Convert cubic feet per minute to liters per second instantly
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Disclaimer: Use calculations at your own risk. For critical applications, verify results against your governing standards/specifications.
How it works
We use L/s = cfm x 0.4719474432.
Exact relationship: 1 cfm = 0.4719474432 L/s.
Example: 100 cfm = 47.195 L/s.
Notes: Results are rounded in the default view.
Examples
- 100 cfm = 47.195 L/s
- 1000 cfm = 471.947 L/s
- 10000 cfm = 4719.474 L/s
FAQ
What physical quantity do cubic feet per minute and liters per second express?
Cubic feet per minute express airflow and bulk volumetric movement at a building or equipment scale. Liters per second express higher-rate metric flow more compactly than liters per minute for some engineering applications.
What is the difference between cubic feet per minute and liters per second?
Cubic feet per minute and liters per second both express volumetric flow rate, but they are favored in different liquid, air, utility, and process-system contexts.
What is the history of the cubic foot per minute?
Cubic feet per minute became standard in HVAC, fans, blowers, and air-system practice where foot-based volume units were already common.
What is the history of the liter per second?
Liters per second became common where SI-based flow reporting benefits from second-based rate calculations.
Were the cubic foot per minute and liter per second discovered by a specific person?
Cubic feet per minute are a conventional flow unit rather than a one-person discovery. Liters per second are a standardized derived flow unit rather than something discovered by one person.
Where are cubic feet per minute and liters per second used in science and engineering?
Cfm is used in HVAC, compressed air, ventilation, dust collection, fans, and equipment airflow specs. Liters per second are used in piping, civil utilities, process design, fire flow, and engineering calculations.
Why do flow-rate units matter in calculations?
Flow-rate units affect pump sizing, piping, ventilation, residence time, equipment selection, and process throughput. Keeping the unit attached helps avoid confusing static volume with volume per unit time.
Can I trust this for critical flow calculations?
Use this for convenience and verify against your governing standard, equipment curve, or controlled engineering source for critical work. Real systems still depend on pressure, temperature, losses, and operating conditions.
References
- Exact constant used: 1 cfm = 0.4719474432 L/s.
- Volume-flow conversions are derived from consistent relationships anchored to cubic meters per second.