Convert CFM to m³/h or m³/h to CFM with this airflow converter in either direction, then see the equivalent airflow using 1.6990108.
Quick Overview: CFM to m³/h
Both CFM and m³/h describe how much air or gas moves through a system over time. CFM is based on cubic feet per minute, while m³/h uses cubic meters per hour.
- 1 CFM = 1.6990108 m³/h
- 1 m³/h ≈ 0.58858 CFM
- 10 CFM ≈ 16.99 m³/h
- 100 CFM ≈ 169.90 m³/h
- 500 CFM ≈ 849.51 m³/h
The calculator automatically applies the fixed conversion factor once you enter the flow value and choose the conversion direction.
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CFM to m³/h Formula
The following formulas are used to convert between cubic feet per minute (CFM) and cubic meters per hour (m³/h).
Variables:
- CFM is the flow rate in cubic feet per minute
- m³/h is the flow rate in cubic meters per hour
- 1.6990108 is the fixed conversion factor between the two units
To convert CFM to m³/h, multiply the CFM value by 1.6990108. To convert m³/h to CFM, divide the m³/h value by 1.6990108.
What is CFM to m³/h Conversion?
Both CFM and m³/h measure volumetric flow rate, which is the amount of air or gas moving through a system over time. CFM is commonly used in HVAC, ventilation, and fan specifications in the United States, while m³/h is the SI-based unit often used in international technical documentation and engineering calculations.
Because the units use different base length measurements and different time intervals, a constant conversion factor is required. Using the exact relationship between feet and meters, 1 CFM equals 1.6990108 m³/h.
How to Convert CFM to m³/h?
The following steps outline how to convert between CFM and m³/h.
- First, determine the airflow value you want to convert.
- Next, identify whether the value is given in CFM or in m³/h.
- If converting from CFM to m³/h, multiply the value by 1.6990108.
- If converting from m³/h to CFM, divide the value by 1.6990108.
- Check your answer with the calculator above.
Example Problem:
Use the following values as example problems to test your knowledge.
Example 1: Flow = 250 CFM
m³/h = 250 × 1.6990108 = 424.7527 m³/h
Example 2: Flow = 1000 m³/h
CFM = 1000 ÷ 1.6990108 = 588.5778 CFM
CFM to m³/h Conversion Table
The following table lists common airflow values in CFM alongside their equivalents in m³/h.
| Flow (CFM) | Flow (m³/h) |
|---|---|
| 10 | 16.99 m³/h |
| 20 | 33.98 m³/h |
| 50 | 84.95 m³/h |
| 100 | 169.90 m³/h |
| 200 | 339.80 m³/h |
| 500 | 849.51 m³/h |
Knowing how to convert between CFM and m³/h makes it easier to compare fans, pumps, blowers, and ventilation systems even when different unit systems are used in product specifications.
