Cubic Foot per Minute to Milliliter per Second (CFM to mL/s)
Convert CFM to mL/s — Flow Rate converter
One cubic foot per minute equals 471.947443 mL/s, so to convert cubic feet per minute to milliliters per second you multiply the value by 471.947443. A cubic foot per minute is larger than a milliliter per second — going the other way, 1 mL/s = 0.00211888 CFM. For example, 10 CFM = 4719.47 mL/s and 50 CFM = 23597.37 mL/s.
1 CFM = 471.947443 mL/s
Cubic Foot per Minute to Milliliter per Second formula
1 Cubic Foot per Minute = 471.947443 mL/s
Worked examples
- 25 CFM = 11798.69 mL/s
- 100 CFM = 47194.74 mL/s
Cubic Foot per Minute to Milliliter per Second conversion table
| Cubic Foot per Minute (CFM) | Milliliter per Second (mL/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 mL/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 milliliters per second are in one cubic foot per minute?
One cubic foot per minute equals 471.947443 milliliters per second (mL/s).
How many cubic feet per minute are in one milliliter per second?
One milliliter per second equals 0.00211888 cubic feet per minute (CFM).
How do you convert cubic feet per minute to milliliters per second?
1 Cubic Foot per Minute = 471.947443 mL/s. Use the calculator above for any value.
What is 5 CFM in mL/s?
5 CFM = 2359.74 mL/s.
What is 100 CFM in mL/s?
100 CFM = 47194.74 mL/s.
What is 10 CFM in mL/s?
10 CFM = 4719.47 mL/s.
What is 20 CFM in mL/s?
20 CFM = 9438.95 mL/s.
What is 50 CFM in mL/s?
50 CFM = 23597.37 mL/s.
What is 500 CFM in mL/s?
500 CFM = 235973.72 mL/s.
Is a cubic foot per minute bigger than a milliliter per second?
Yes. A cubic foot per minute is larger — one cubic foot per minute equals 471.947443 milliliters per second (mL/s).