Cubic Meter per Hour to Cubic Foot per Minute (m³/h to CFM)
Convert m³/h to CFM — Flow Rate converter
Also written as m3/h to CFM.
One cubic meter per hour equals 0.58857778 CFM, so to convert cubic meters per hour to cubic feet per minute you multiply the value by 0.58857778. A cubic meter per hour is smaller than a cubic foot per minute — going the other way, 1 CFM = 1.699011 m³/h. For example, 10 m³/h = 5.885778 CFM and 50 m³/h = 29.428889 CFM.
1 m³/h = 0.58857778 CFM
Cubic Meter per Hour to Cubic Foot per Minute formula
1 Cubic Meter per Hour = 0.58857778 CFM
Worked examples
- 25 m³/h = 14.714444 CFM
- 100 m³/h = 58.857778 CFM
Cubic Meter per Hour to Cubic Foot per Minute conversion table
| Cubic Meter per Hour (m³/h) | Cubic Foot per Minute (CFM) |
|---|---|
| 1 | 0.58857778 |
| 2 | 1.177156 |
| 3 | 1.765733 |
| 5 | 2.942889 |
| 8 | 4.708622 |
| 10 | 5.885778 |
| 12 | 7.062933 |
| 15 | 8.828667 |
| 20 | 11.771556 |
| 25 | 14.714444 |
| 50 | 29.428889 |
| 100 | 58.857778 |
| 250 | 147.144445 |
| 500 | 294.288889 |
| 1000 | 588.577779 |
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/h = 0.58857778 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 meter per hour?
One cubic meter per hour equals 0.58857778 cubic feet per minute (CFM).
How many cubic meters per hour are in one cubic foot per minute?
One cubic foot per minute equals 1.699011 cubic meters per hour (m³/h).
How do you convert cubic meters per hour to cubic feet per minute?
1 Cubic Meter per Hour = 0.58857778 CFM. Use the calculator above for any value.
What is 5 m³/h in CFM?
5 m³/h = 2.942889 CFM.
What is 100 m³/h in CFM?
100 m³/h = 58.857778 CFM.
What is 10 m³/h in CFM?
10 m³/h = 5.885778 CFM.
What is 20 m³/h in CFM?
20 m³/h = 11.771556 CFM.
What is 50 m³/h in CFM?
50 m³/h = 29.428889 CFM.
What is 500 m³/h in CFM?
500 m³/h = 294.288889 CFM.
Is a cubic meter per hour bigger than a cubic foot per minute?
No. A cubic meter per hour is smaller — one cubic meter per hour equals 0.58857778 cubic feet per minute, while one cubic foot per minute equals 1.699011 cubic meters per hour.