m³/s to cfs Converter
Enter the flow rate in m³/s below to convert it to cfs.
Convert m³/s to cfs
Enter a value in m³/s (m³/s) to convert to cfs (ft³/s).
Cubic Meters per Second to Cubic Feet per Second Conversion Table
Table showing various cubic meters per second measurements converted to cfs. Click any preset value or arrow to load it into the converter.
| m³/s (m³/s) | cfs (ft³/s) |
|---|---|
| 1 m³/s | 35.3146667 ft³/s |
| 2 m³/s | 70.6293334 ft³/s |
| 2.5 m³/s | 88.2866668 ft³/s |
| 5 m³/s | 176.5733336 ft³/s |
| 10 m³/s | 353.1466672 ft³/s |
| 15 m³/s | 529.7200008 ft³/s |
| 20 m³/s | 706.2933344 ft³/s |
| 25 m³/s | 882.866668 ft³/s |
| 30 m³/s | 1,059.4400016 ft³/s |
| 50 m³/s | 1,765.7333361 ft³/s |
How to Convert m³/s to cfs
To convert m³/s to cfs, multiply the flow rate by the following conversion ratio: 35.3146667 cfs/cubic meters per second.
Since one cubic meters per second is equal to 35.3146667 cfs, you can use this simple formula to convert:
The flow rate in cfs is equal to the flow rate in m³/s multiplied by 35.3146667.
For example, here's how to convert 5 m³/s to cfs using the formula above.
How Many cfs Are in a Cubic Meters per Second?
There are 35.3146667 cfs in a cubic meters per second, which is why we use this value in the formula above.
Our cubic meters per second to cubic feet per second calculator automatically converts your flow rate measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
m³/s and cfs are both units used to measure flow rate. Keep reading to learn more about each unit.
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). [1]
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.
What Is a Cubic Feet per Second?
A cubic feet per second is a unit of flow rate equal to 1,699.0107955 liters per minute (L/min), the base unit for flow rate. River hydrology flow unit equal to 28.3168 L/s. [2]
The cubic feet per second is classified as a US customary unit of flow rate. cfs can be abbreviated as ft³/s; for example, 1 cubic feet per second can be written as 1 ft³/s.
When working with cfs (ft³/s) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, cfs (ft³/s) are widely used across large-scale industrial, bulk, and macro-level flow rate specifications within US customary workflows, engineering documentation, and technical data sheets.
When converting flow rate between m³/s (m³/s) and cfs (ft³/s), keep full floating-point precision (1 m³/s = 35.3146667 ft³/s; 1 ft³/s = 0.0283168 m³/s) during intermediate calculations and round only the final cubic feet per second figure to match your instrument tolerance.
More Cubic Meters per Second & Cubic Feet per Second Conversions
Need to calculate in the opposite direction? Use our cfs to m³/s calculator to switch your starting unit immediately. You can also explore related tools such as converting cfs to m³/s, converting liters per minute to gpm (us), or converting gpm (us) 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 — m³/s (m³/s) to cfs (ft³/s)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Volume & Flow Capacity)·Unit Specifications: Cubic Meters per Second (m³/s) & Cubic Feet per Second (cfs) (ft³/s)
- [3]BIPM ReferenceBIPM (Coherent Volumetric Flow Units (m³/s))·Conversion Factors & Mathematical Basis (m³/s to ft³/s)