Liters per Second to CFM Converter
Enter the flow rate in liters per second below to convert it to cfm.
Convert Liters per Second to CFM
Enter a value in liters per second (L/s) to convert to cfm (CFM).
Liters per Second to Cubic Feet per Minute Conversion Table
Table showing various liters per second measurements converted to cfm. Click any preset value or arrow to load it into the converter.
| Liters per Second (L/s) | CFM (CFM) |
|---|---|
| 1 L/s | 2.11888 CFM |
| 2 L/s | 4.23776 CFM |
| 2.5 L/s | 5.2972 CFM |
| 5 L/s | 10.5944 CFM |
| 10 L/s | 21.1888 CFM |
| 15 L/s | 31.7832 CFM |
| 20 L/s | 42.3776001 CFM |
| 25 L/s | 52.9720001 CFM |
| 30 L/s | 63.5664001 CFM |
| 50 L/s | 105.9440002 CFM |
How to Convert Liters per Second to CFM
To convert liters per second to cfm, multiply the flow rate by the following conversion ratio: 2.11888 cfm/liters per second.
Since one liters per second is equal to 2.11888 cfm, you can use this simple formula to convert:
The flow rate in cfm is equal to the flow rate in liters per second multiplied by 2.11888.
For example, here's how to convert 5 liters per second to cfm using the formula above.
How Many CFM Are in a Liters per Second?
There are 2.11888 cfm in a liters per second, which is why we use this value in the formula above.
Our liters per second to cubic feet per minute calculator automatically converts your flow rate measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Liters per Second and cfm are both units used to measure flow rate. Keep reading to learn more about each unit.
What Is a Liters per Second?
A liters per second is a unit of flow rate equal to 60 liters per minute (L/min), the base unit for flow rate. Equal to 60 L/min. [1]
The liters per second is classified as a metric and SI-compatible unit of flow rate. Liters per Second can be abbreviated as L/s; for example, 1 liters per second can be written as 1 L/s.
When working with liters per second (L/s) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, liters per second (L/s) are widely used across standard flow rate applications within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Cubic Feet per Minute?
A cubic feet per minute is a unit of flow rate equal to 28.3168466 liters per minute (L/min), the base unit for flow rate. HVAC & air compressor airflow unit (28.3168 L/min). [2]
The cubic feet per minute is classified as a US customary unit of flow rate. CFM can be abbreviated as CFM; for example, 1 cubic feet per minute can be written as 1 CFM.
When working with cfm (CFM) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, cfm (CFM) are widely used across standard flow rate applications within US customary workflows, engineering documentation, and technical data sheets.
When converting flow rate between liters per second (L/s) and cfm (CFM), keep full floating-point precision (1 L/s = 2.11888 CFM; 1 CFM = 0.4719474 L/s) during intermediate calculations and round only the final cubic feet per minute figure to match your instrument tolerance.
More Liters per Second & Cubic Feet per Minute Conversions
Need to calculate in the opposite direction? Use our cfm to liters per second calculator to switch your starting unit immediately. You can also explore related tools such as converting cfm to liters per second, converting liters per minute to gpm (us), or converting gpm (us) to liters per minute.
Convert from Liters per Second
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Volume Divided by Time))·Flow Rate Metrology Standard — Liters per Second (L/s) to CFM (CFM)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Volume & Flow Capacity)·Unit Specifications: Liters per Second (L/s) & Cubic Feet per Minute (CFM) (CFM)
- [3]BIPM ReferenceBIPM (Coherent Volumetric Flow Units (m³/s))·Conversion Factors & Mathematical Basis (L/s to CFM)