Cubic Foot per Minute to Cubic Centimeter per Second (CFM to cm³/s)
Convert CFM to cm³/s — Flow Rate converter
Also written as CFM to cm3/s.
One cubic foot per minute equals 471.947443 cm³/s, so to convert cubic feet per minute to cubic centimeters per second you multiply the value by 471.947443. A cubic foot per minute is larger than a cubic centimeter per second — going the other way, 1 cm³/s = 0.00211888 CFM. For example, 10 CFM = 4719.47 cm³/s and 50 CFM = 23597.37 cm³/s.
1 CFM = 471.947443 cm³/s
Cubic Foot per Minute to Cubic Centimeter per Second formula
1 Cubic Foot per Minute = 471.947443 cm³/s
Worked examples
- 25 CFM = 11798.69 cm³/s
- 100 CFM = 47194.74 cm³/s
Cubic Foot per Minute to Cubic Centimeter per Second conversion table
| Cubic Foot per Minute (CFM) | Cubic Centimeter per Second (cm³/s) |
|---|---|
| 1 | 471.947443 |
| 2 | 943.894886 |
| 3 | 1415.84 |
| 5 | 2359.74 |
| 8 | 3775.58 |
| 10 | 4719.47 |
| 12 | 5663.37 |
| 15 | 7079.21 |
| 20 | 9438.95 |
| 25 | 11798.69 |
| 50 | 23597.37 |
| 100 | 47194.74 |
| 250 | 117986.86 |
| 500 | 235973.72 |
| 1000 | 471947.44 |
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 CFM = 471.947443 cm³/s.
CFM to metric is worth memorising: one cubic foot is exactly 0.028316846592 m³, so 1 CFM = 1.699011 m³/h and 1,000 CFM ≈ 1,699 m³/h. Note that CFM on a compressor may be quoted as free air delivery (FAD) at inlet conditions rather than at working pressure — the two are not interchangeable.
Frequently asked questions
How many cubic centimeters per second are in one cubic foot per minute?
One cubic foot per minute equals 471.947443 cubic centimeters per second (cm³/s).
How many cubic feet per minute are in one cubic centimeter per second?
One cubic centimeter per second equals 0.00211888 cubic feet per minute (CFM).
How do you convert cubic feet per minute to cubic centimeters per second?
1 Cubic Foot per Minute = 471.947443 cm³/s. Use the calculator above for any value.
What is 5 CFM in cm³/s?
5 CFM = 2359.74 cm³/s.
What is 100 CFM in cm³/s?
100 CFM = 47194.74 cm³/s.
What is 10 CFM in cm³/s?
10 CFM = 4719.47 cm³/s.
What is 20 CFM in cm³/s?
20 CFM = 9438.95 cm³/s.
What is 50 CFM in cm³/s?
50 CFM = 23597.37 cm³/s.
What is 500 CFM in cm³/s?
500 CFM = 235973.72 cm³/s.
Is a cubic foot per minute bigger than a cubic centimeter per second?
Yes. A cubic foot per minute is larger — one cubic foot per minute equals 471.947443 cubic centimeters per second (cm³/s).