m³/h to CFM Converter
Convert cubic metres per hour (m³/h) to cubic feet per minute (CFM). One cubic metre is 35.3147 cubic feet and an hour is 60 minutes, so 1 m³/h = 0.588579 CFM. Use it when a metric ventilation rate or fan curve has to be compared with US equipment rated in CFM.
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m³/h to CFM conversion resultFree download
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How It Works
m³/h is the airflow unit in European ventilation standards, fan catalogues and heat recovery unit data. CFM is the unit on US fans, air handling units and duct sizing charts. The conversion is a fixed volumetric factor and does not depend on temperature or pressure, provided both figures are quoted at the same conditions.
m³/h to CFM Formula
CFM = m³/h × 0.588579
One cubic metre per hour equals 0.588579 cubic feet per minute. Going the other way, one CFM equals 1.69901 m³/h.
Worked Example
Converting 1000 m³/h:
1000 × 0.588579 = 588.579 CFM
m³/h to CFM Conversion Table
| m³/h | CFM |
|---|---|
| 1 m³/h | 0.588579 CFM |
| 5 m³/h | 2.94289 CFM |
| 10 m³/h | 5.88579 CFM |
| 25 m³/h | 14.7145 CFM |
| 50 m³/h | 29.4289 CFM |
| 100 m³/h | 58.8579 CFM |
| 250 m³/h | 147.145 CFM |
| 500 m³/h | 294.289 CFM |
| 1000 m³/h | 588.579 CFM |
Going the other way? Use the CFM to m³/h converter. For any other unit pair, the full flow rate converter handles every supported unit.
FAQ
Common questions about converting cubic metres per hour to cubic feet per minute.
Frequently Asked Questions
How do I convert m³/h to CFM?
Multiply the m³/h value by 0.588579. For example, 1000 m³/h x 0.588579 = 588.579 CFM. The factor is 35.3147 cubic feet per cubic metre divided by 60 minutes per hour.
How many CFM is 1 m³/h?
One cubic metre per hour is 0.588579 cubic feet per minute. A quick estimate is to divide m³/h by 1.7.
What is 500 m³/h in CFM?
500 m³/h is 294.3 CFM. That is a typical extract rate for a domestic kitchen hood, which a US catalogue would list as roughly 300 CFM.
How do I convert m³/h to L/s?
Divide by 3.6. 1,000 m³/h is 277.8 L/s. Both are metric; L/s is preferred in UK, Australian and ISO ventilation standards and in duct velocity calculations.
Can I use this for water flow?
Yes. m³/h and CFM are volumetric units, so the factor is the same for any fluid. For water, m³/h to GPM is the more common conversion and has its own page.
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