Flow rate
cfm to m³/h Converter
1 cfm = 1.699 m³/h. Enter any value and the result updates instantly.
Convert
Accuracy and rounding
For ventilation, fans, compressors, HVAC, and air-handling specifications.
Volume-flow units combine fixed volume definitions with fixed time units. U.S. gallons are used when gpm or gph is shown.
For pumps and HVAC, round m³/h only after allowing for the equipment tolerance and operating point.
How to convert cfm to m³/h
- Type the cfm value in the calculator.
- Keep cfm selected as the from unit and m³/h selected as the to unit.
- Use the instant result, or copy it with the copy button.
cfm to m³/h chart
| cfm | m³/h |
|---|---|
| 1 cfm | 1.699 m³/h |
| 5 cfm | 8.4951 m³/h |
| 10 cfm | 16.9901 m³/h |
| 50 cfm | 84.9505 m³/h |
| 100 cfm | 169.9 m³/h |
Formula
m³/h = cfm x 1.69901079552
Example: 1 cfm = 1.699 m³/h.
Source
Volume-per-time factors derived from NIST volume definitions and the SI second.
Common questions
How do I convert cfm to m³/h?
Enter the cfm value in the converter, or multiply by the factor shown in the formula. 1 cfm = 1.699 m³/h.
What should I watch out for?
GPM and GPH use U.S. liquid gallons; imperial gallons produce a different result.
Where does this flow rate conversion come from?
Volume-per-time factors derived from NIST volume definitions and the SI second. ConverterBase uses stable definitions and fixed conversion factors, not live or rounded market data.