CFM to m³/h Converter

CFM to m³/h conversion chart

Calculated with the formula above; filter or export as CSV.

Filter chart

CFM to m³/h conversion chart
CFM	m³/h	m³/min
10	16.99010796	0.28316847
25	42.47526989	0.70792116
50	84.95053978	1.41584233
75	127.42580966	2.12376349
100	169.90107955	2.83168466
150	254.85161933	4.24752699
200	339.8021591	5.66336932
250	424.75269888	7.07921165
300	509.70323866	8.49505398
400	679.60431821	11.32673864
500	849.50539776	14.1584233
600	1019.40647731	16.99010796
750	1274.25809664	21.23763494
800	1359.20863642	22.65347727
1000	1699.01079552	28.31684659
1200	2038.81295462	33.98021591
1500	2548.51619328	42.47526989
2000	3398.02159104	56.63369318
2500	4247.5269888	70.79211648
3000	5097.03238656	84.95053978
4000	6796.04318208	113.26738637
5000	8495.0539776	141.58423296
7500	12742.5809664	212.37634944
10000	16990.1079552	283.16846592
15000	25485.1619328	424.75269888
20000	33980.2159104	566.33693184

Formula and method

m³/h = CFM × 1.699010796 CFM = m³/h × 0.588577779 Multiply by the source unit’s SI factor to get m³/s, then divide by the target unit’s SI factor.

Worked example

1,000 CFM × 1.699010796 = 1,699.011 m³/h.

Assumptions and limits

Volumetric flow unit conversion only, with 1 ft = 0.3048 m exactly; no temperature, pressure or altitude correction.
Results show up to 3 decimals; Copy and CSV keep more digits.

Frequently asked questions

How many m³/h are in 1 CFM?

1 CFM = 1.699010796 m³/h. The factor follows from the SI definitions: 1 ft³ = (0.3048 m)³ = 0.028316846592 m³ and 1 h = 60 min.

How do I convert m³/h back to CFM?

Multiply by 0.588577779 (or divide by 1.699010796), or simply switch “From unit” to m³/h. For example 10 m³/h = 5.886 CFM.

Can I convert SCFM or ACFM with this?

Yes for the unit, but the basis stays the same: SCFM becomes standard m³/h (often written Nm³/h or Sm³/h — check which reference temperature and pressure the other side uses) and ACFM becomes actual m³/h. Converting between standard and actual needs a temperature and pressure correction, which this page does not apply.

References

CFM to m³/h Converter practical guide and common questions

What does CFM to m³/h Converter calculate?

Convert airflow from cubic feet per minute to m³/h, m³/min and L/s for fans, compressors and ventilation sizing. Conversion runs in your browser; factors are from NIST SP 811. m³/h = CFM × 1.699010796 CFM = m³/h × 0.588577779 Multiply by the source unit’s SI factor to get m³/s, then divide by the target unit’s SI factor.

When is this useful?

1,000 CFM × 1.699010796 = 1,699.011 m³/h.

How do I enter the inputs?

Enter the inputs for CFM to m³/h Converter: Value, From unit. Calculate, check the units and assumptions, then copy or download the results.

How should I interpret the results?

Volumetric flow unit conversion only, with 1 ft = 0.3048 m exactly; no temperature, pressure or altitude correction. Results show up to 3 decimals; Copy and CSV keep more digits.

Where are my inputs processed?

CFM to m³/h Converter runs in this browser. Inputs are not uploaded to a calculation server; copying and CSV download require your action. The existing site analytics and advertising still load.