CFM to m³/s Converter
Enter the flow rate in cfm below to convert it to m³/s.
Convert CFM to m³/s
Enter a value in cfm (CFM) to convert to m³/s (m³/s).
Cubic Feet per Minute to Cubic Meters per Second Conversion Table
Table showing various cubic feet per minute measurements converted to m³/s. Click any preset value or arrow to load it into the converter.
| CFM (CFM) | m³/s (m³/s) |
|---|---|
| 1 CFM | 0.000471947 m³/s |
| 2 CFM | 0.000943895 m³/s |
| 2.5 CFM | 0.0011799 m³/s |
| 5 CFM | 0.0023597 m³/s |
| 10 CFM | 0.0047195 m³/s |
| 15 CFM | 0.0070792 m³/s |
| 20 CFM | 0.0094389 m³/s |
| 25 CFM | 0.0117987 m³/s |
| 30 CFM | 0.0141584 m³/s |
| 50 CFM | 0.0235974 m³/s |
How to Convert CFM to m³/s
To convert cfm to m³/s, multiply the flow rate by the following conversion ratio: 0.000471947 m³/s/cubic feet per minute.
Since one cubic feet per minute is equal to 0.000471947 m³/s, you can use this simple formula to convert:
The flow rate in m³/s is equal to the flow rate in cfm multiplied by 0.000471947.
For example, here's how to convert 5 cfm to m³/s using the formula above.
How Many m³/s Are in a Cubic Feet per Minute?
There are 0.000471947 m³/s in a cubic feet per minute, which is why we use this value in the formula above.
Our cubic feet per minute to cubic meters per second calculator automatically converts your flow rate measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
CFM and m³/s are both units used to measure flow rate. Keep reading to learn more about each unit.
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). [1]
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.
What Is a Cubic Meters per Second?
A cubic meters per second is a unit of flow rate equal to 60,000 liters per minute (L/min), the base unit for flow rate. Coherent SI flow unit equal to 1,000 L/s (60,000 L/min). [2]
The cubic meters per second is classified as an International System of Units (SI) unit of flow rate. m³/s can be abbreviated as m³/s; for example, 1 cubic meters per second can be written as 1 m³/s.
When working with m³/s (m³/s) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, m³/s (m³/s) are widely used across large-scale industrial, bulk, and macro-level flow rate specifications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting flow rate between cfm (CFM) and m³/s (m³/s), keep full floating-point precision (1 CFM = 0.000471947 m³/s; 1 m³/s = 2,118.8800033 CFM) during intermediate calculations and round only the final cubic meters per second figure to match your instrument tolerance.
More Cubic Feet per Minute & Cubic Meters per Second Conversions
Need to calculate in the opposite direction? Use our m³/s to cfm calculator to switch your starting unit immediately. You can also explore related tools such as converting m³/s to cfm, converting gpm (us) to m³/s, or converting cfm to liters per minute.
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 — CFM (CFM) to m³/s (m³/s)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Volume & Flow Capacity)·Unit Specifications: Cubic Feet per Minute (CFM) (CFM) & Cubic Meters per Second (m³/s)
- [3]BIPM ReferenceBIPM (Coherent Volumetric Flow Units (m³/s))·Conversion Factors & Mathematical Basis (CFM to m³/s)