Convert airflow between cubic meters per hour (m³/h) and cubic feet per minute (CFM) for ventilation flow rates using 1 m³/h ≈ 0.5885778 CFM.
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m3/h to cfm Formula
The following formula is used to convert m3/h to cfm.
cfm = 0.5885778 × m3 / h
- Where cfm is the cubic feet per minute
- m3/h is the cubic meters per hour
To calculate cfm from m3/h multiply the m3/h by 0.5885778.
| m³/h | CFM (ft³/min) |
|---|---|
| 5 | 2.943 |
| 10 | 5.886 |
| 20 | 11.772 |
| 25 | 14.714 |
| 30 | 17.657 |
| 40 | 23.543 |
| 50 | 29.429 |
| 60 | 35.315 |
| 75 | 44.143 |
| 80 | 47.086 |
| 100 | 58.858 |
| 120 | 70.629 |
| 150 | 88.287 |
| 200 | 117.716 |
| 250 | 147.144 |
| 300 | 176.573 |
| 400 | 235.431 |
| 500 | 294.289 |
| 750 | 441.433 |
| 1000 | 588.578 |
| *Rounded factors: 1 m³/h ≈ 0.58857778 CFM; 1 CFM = 1.69901079552 m³/h exactly (based on 1 ft³ = 0.028316846592 m³). | |
How do you convert m3/h to cfm? Multiply m3/h by 0.5885778 (or divide by 1.6990108) to get cfm.
How do you convert cfm to m3/h? Multiply cfm by 1.6990108 (or divide by 0.5885778) to get m3/h.
Example Problem
How to calculate cfm from m3/h?
First, determine the total number of cubic meters per hour.
For this example, the total number of m3/h is found to be 150.
Next, use the formula for the conversion above to determine the amount of cfm.
cfm = 0.5885778 * m3/h
cfm = 0.5885778 * 150
cfm = 88.2867
