Cubic Centimeter per Second to Cubic Foot per Minute (cm³/s to CFM)
Convert cm³/s to CFM — Flow Rate converter
Also written as cm3/s to CFM.
One cubic centimeter per second equals 0.00211888 CFM, so to convert cubic centimeters per second to cubic feet per minute you multiply the value by 0.00211888. A cubic centimeter per second is smaller than a cubic foot per minute — going the other way, 1 CFM = 471.947443 cm³/s. For example, 10 cm³/s = 0.0211888 CFM and 50 cm³/s = 0.105944 CFM.
1 cm³/s = 0.00211888 CFM
Cubic Centimeter per Second to Cubic Foot per Minute formula
1 Cubic Centimeter per Second = 0.00211888 CFM
Worked examples
- 25 cm³/s = 0.052972 CFM
- 100 cm³/s = 0.211888 CFM
Cubic Centimeter per Second to Cubic Foot per Minute conversion table
| Cubic Centimeter per Second (cm³/s) | Cubic Foot per Minute (CFM) |
|---|---|
| 1 | 0.00211888 |
| 2 | 0.00423776 |
| 3 | 0.00635664 |
| 5 | 0.0105944 |
| 8 | 0.01695104 |
| 10 | 0.0211888 |
| 12 | 0.02542656 |
| 15 | 0.0317832 |
| 20 | 0.0423776 |
| 25 | 0.052972 |
| 50 | 0.105944 |
| 100 | 0.211888 |
| 250 | 0.52972 |
| 500 | 1.05944 |
| 1000 | 2.11888 |
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 cm³/s = 0.00211888 CFM.
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 feet per minute are in one cubic centimeter per second?
One cubic centimeter per second equals 0.00211888 cubic feet per minute (CFM).
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 do you convert cubic centimeters per second to cubic feet per minute?
1 Cubic Centimeter per Second = 0.00211888 CFM. Use the calculator above for any value.
What is 5 cm³/s in CFM?
5 cm³/s = 0.0105944 CFM.
What is 100 cm³/s in CFM?
100 cm³/s = 0.211888 CFM.
What is 10 cm³/s in CFM?
10 cm³/s = 0.0211888 CFM.
What is 20 cm³/s in CFM?
20 cm³/s = 0.0423776 CFM.
What is 50 cm³/s in CFM?
50 cm³/s = 0.105944 CFM.
What is 500 cm³/s in CFM?
500 cm³/s = 1.05944 CFM.
Is a cubic centimeter per second bigger than a cubic foot per minute?
No. A cubic centimeter per second is smaller — one cubic centimeter per second equals 0.00211888 cubic feet per minute, while one cubic foot per minute equals 471.947443 cubic centimeters per second.