CFM to m³/h Converter
Reverse Conversion: m³/h to CFM

Airflow measurement is integral in various fields, from air compressors and HVAC systems to industrial applications. Understanding how to convert CFM (Cubic Feet per Minute) to M3/h (Cubic Meters per Hour) will enable you to make informed decisions and help select equipment appropriately.
What is CFM in Flow Measurement?
CFM (Cubic Feet per Minute) is one of the most widely used units for measuring airflow. It indicates how much air moves through a system in one minute. In various fields, including HVAC, industrial processes, and especially air compressors, CFM is crucial for ensuring the system operates at peak performance.
Why CFM Matters
- For Air Compressors: The CFM rating of an air compressor tells you how much air it can deliver per minute, which is vital for meeting system demands.
- For HVAC Systems: Understanding the CFM helps design ventilation systems that deliver the correct airflow for heating, cooling, and air quality.
- For Industrial Applications: CFM is used to measure the flow of compressed air for machinery, tools, and production processes.
What is M³/h and How Does It Apply to Airflow Measurement?
M³/h (Cubic Meters per Hour) is the metric unit of measurement used to express the volume of air that passes through a system in one hour. In many parts of the world, especially in regions that follow the metric system, M³/h is preferred over CFM.
M³/h in Different Applications
- Air Compressors: In Europe and other countries using the metric system, M³/h is used to describe the airflow of compressors.
- HVAC and Ventilation: M³/h is frequently used in calculating airflow for heating, ventilation, and air conditioning (HVAC) systems.
- Industrial Settings: Many production environments use M³/h to measure airflow to machinery, ensuring proper functioning.
Why Convert CFM to M³/h?
Converting between CFM and M³/h is essential for many industries, including air compressors, HVAC systems, and industrial equipment, due to the following reasons:
- Global Compatibility: Different regions use different units for airflow. CFM is commonly used in the U.S., while M³/h is prevalent in Europe and other regions.
- Precise System Design: Ensuring that equipment is sized correctly according to the right airflow measurements is essential for system performance.
- Standardized Comparisons: When evaluating or comparing equipment from different regions, converting between these two units ensures a fair comparison of airflow performance.
How to Convert CFM to M³/h and Vice Versa
Converting CFM to M³/h
The formula to convert CFM to M³/h is:
M³/h = CFM × 1.69901
Example:
A compressor rated at 500 CFM is equivalent to:
500 × 1.69901 = 849.51 M³/h
Converting M³/h to CFM
To convert M³/h to CFM, use the formula:
CFM = M³/h × 0.58858
Example:
A compressor rated at 10 M³/h is equivalent to:
10 × 0.58858 = 5.89 CFM
CFM to M³/h Conversion Table for Quick Reference
| CFM | m³/h |
|---|---|
| 1 CFM | 1.69901 m³/h |
| 2 CFM | 3.39802 m³/h |
| 3 CFM | 5.09703 m³/h |
| 4 CFM | 6.79604 m³/h |
| 5 CFM | 8.49505 m³/h |
| 6 CFM | 10.19406 m³/h |
| 7 CFM | 11.89307 m³/h |
| 8 CFM | 13.59208 m³/h |
| 9 CFM | 15.29109 m³/h |
| 10 CFM | 16.99010 m³/h |
| 20 CFM | 33.98020 m³/h |
| 30 CFM | 50.97030 m³/h |
| 40 CFM | 67.96040 m³/h |
| 50 CFM | 84.95050 m³/h |
| 60 CFM | 101.94060 m³/h |
| 200 CFM | 339.80200 m³/h |
| 300 CFM | 509.70300 m³/h |
| 400 CFM | 679.60400 m³/h |
| 500 CFM | 849.50500 m³/h |
| 1000 CFM | 1699.01000 m³/h |
Using a CFM to m³/h Converter Tool
For quick and easy conversions, you can use our CFM to m³/h conversion tool above. This tool instantly converts between CFM and m³/h, making it easier to select the right equipment for your needs.
CFM vs. m³/h in Air Compressors: Industry-Specific Considerations
The conversion formula between CFM and m³/h is fixed, provided both values use the same operating or reference conditions. This is especially important for air compressors.
Air Compressor Sizing: Manufacturers in different regions may use different airflow units. Always confirm whether the stated flow is CFM, SCFM, ACFM, FAD, or Nm³/h before comparing compressors.
HVAC Systems: Accurate airflow measurement helps ensure energy efficiency, comfort, and indoor air quality.
Industrial Machinery: CFM and m³/h are used to match compressed-air supply with the airflow needs of tools, machines, and production lines.
The Importance of Proper Airflow Measurement
Accurate airflow measurement helps industrial systems operate safely and efficiently.
Prevent System Overload: Correct equipment sizing prevents compressors and other systems from being overloaded.
Improve Energy Efficiency: Correct airflow sizing helps reduce unnecessary energy consumption.
Extend Equipment Lifespan: Proper airflow reduces excessive wear and helps equipment last longer.
Key Takeaways
Understanding CFM and m³/h is important when selecting air compressors, HVAC systems, and industrial equipment.
The correct conversions are:
1 CFM = 1.69901 m³/h
1 m³/h = 0.58858 CFM
Accurate conversion helps compare equipment, improve system performance, and avoid incorrect sizing. For compressor selection, always compare airflow values under the same pressure, temperature, and reference conditions.

