CFM to m³/h Converter
Convert cubic feet per minute (CFM) to cubic meters per hour (m³/h) instantly. Type a value — the result updates as you type, and the swap button converts the other way.
CFM to m³/h formula
m³/h = CFM × 1.69901082
1 cubic foot per minute = 1.7 cubic meters per hour · 1 cubic meter per hour = 0.5886 cubic feet per minute
To convert cubic feet per minute to cubic meters per hour, multiply the value by 1.69901082. For example, 100 CFM:
m³/h = 100 × 1.69901082m³/h = 169.90108
So 100 CFM = 169.9 m³/h.
Mental math shortcut
Quick mental estimate: multiply by 1.7. For 100 CFM that gives about 170 m³/h — within 1% of the exact answer. Use the exact formula when precision matters.
CFM to m³/h conversion table
m³/h back to CFM
The same values converted the other way, rounded for everyday use:
| Cubic meters per hour | Cubic feet per minute |
|---|---|
| 16.99 m³/h | 10 CFM |
| 84.95 m³/h | 50 CFM |
| 169.9 m³/h | 100 CFM |
| 339.8 m³/h | 200 CFM |
| 509.7 m³/h | 300 CFM |
| 679.6 m³/h | 400 CFM |
| 1019.41 m³/h | 600 CFM |
| 1699.01 m³/h | 1000 CFM |
About the units
Cubic feet per minute (CFM)
Cubic feet per minute measures air flow — for fans, range hoods, HVAC and air compressors.
Cubic meters per hour (m³/h)
Cubic meters per hour is the metric unit for air flow in ventilation systems.
Frequently asked questions
How many cubic meters per hour are in a cubic foot per minute?
One cubic foot per minute equals 1.7 cubic meters per hour.
What is 100 CFM in m³/h?
100 CFM = 169.9 m³/h.
How do I convert m³/h back to CFM?
Divide the cubic meters per hour by 1.69901082.