How to convert air volume m³/h into CFM unit?
Air volume unit conversion: m³/h and CFM
When discussing air volume or airflow, we typically encounter two main units of measurement:
CFM (Cubic Feet per Minute) - Also written ft³/m, mainly used in the United States and some countries that use imperial units, 1 CFM = 1 cubic foot of air flowing through per minute.
CMH (Cubic Meters per Hour) - Also written m³/h or m3/h, more common in countries that use metric units, 1 CMH = 1 cubic meter of air flowing through it per hour.
The conversion relationship between these two units is as follows:
1 CMH ≈ 0.589CFM
1 CFM ≈ 1.699 CMH
Understanding these units and their conversions is important for understanding and comparing air volume data internationally, especially in areas such as heating, ventilation and air conditioning (HVAC), ventilation system design, and industrial applications.
No matter which units you encounter, you can now easily convert using the tables below to ensure accurate and usable airflow data between different measurement systems.
CFM to CMH conversion
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