Cubic Meter per Second to Cubic Foot per Second (m³/s to CFS)
Convert m³/s to CFS — Flow Rate converter
Also written as m3/s to CFS.
One cubic meter per second equals 35.314667 CFS, so to convert cubic meters per second to cubic feet per second you multiply the value by 35.314667. A cubic meter per second is larger than a cubic foot per second — going the other way, 1 CFS = 0.02831685 m³/s. For example, 10 m³/s = 353.146667 CFS and 50 m³/s = 1765.73 CFS.
1 m³/s = 35.314667 CFS
Cubic Meter per Second to Cubic Foot per Second formula
1 Cubic Meter per Second = 35.314667 CFS
Worked examples
- 25 m³/s = 882.866668 CFS
- 100 m³/s = 3531.47 CFS
Cubic Meter per Second to Cubic Foot per Second conversion table
| Cubic Meter per Second (m³/s) | Cubic Foot per Second (CFS) |
|---|---|
| 1 | 35.314667 |
| 2 | 70.629333 |
| 3 | 105.944 |
| 5 | 176.573334 |
| 8 | 282.517334 |
| 10 | 353.146667 |
| 12 | 423.776001 |
| 15 | 529.720001 |
| 20 | 706.293334 |
| 25 | 882.866668 |
| 50 | 1765.73 |
| 100 | 3531.47 |
| 250 | 8828.67 |
| 500 | 17657.33 |
| 1000 | 35314.67 |
Which gallon, and which trade
The single most expensive mistake in flow conversion is the gallon. A US liquid gallon is 3.785411784 litres; an imperial gallon is 4.54609 litres. US GPM and imperial GPM differ by about 20%, and pump datasheets frequently do not say which one they mean. Check the manufacturer's country of origin before trusting a GPM figure.
Different trades default to different units for the same physical quantity: HVAC and compressed air work in CFM, plumbing and pumps in GPM or LPM, and process and water engineering in m³/h or L/s. A specification that mixes them is usually quoting different equipment, not different flows. On this page, 1 m³/s = 35.314667 CFS.
Frequently asked questions
How many cubic feet per second are in one cubic meter per second?
One cubic meter per second equals 35.314667 cubic feet per second (CFS).
How many cubic meters per second are in one cubic foot per second?
One cubic foot per second equals 0.02831685 cubic meters per second (m³/s).
How do you convert cubic meters per second to cubic feet per second?
1 Cubic Meter per Second = 35.314667 CFS. Use the calculator above for any value.
What is 5 m³/s in CFS?
5 m³/s = 176.573334 CFS.
What is 100 m³/s in CFS?
100 m³/s = 3531.47 CFS.
What is 10 m³/s in CFS?
10 m³/s = 353.146667 CFS.
What is 20 m³/s in CFS?
20 m³/s = 706.293334 CFS.
What is 50 m³/s in CFS?
50 m³/s = 1765.73 CFS.
What is 500 m³/s in CFS?
500 m³/s = 17657.33 CFS.
Is a cubic meter per second bigger than a cubic foot per second?
Yes. A cubic meter per second is larger — one cubic meter per second equals 35.314667 cubic feet per second (CFS).