Cubic feet per minute to cubic meters per hour
Type a value in cubic feet per minute to see it in cubic meters per hour straight away, or type in the second box to convert back.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Type the value in the cubic feet per minute box.
- Read the result in cubic meters per hour as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
m³/h = CFM × 1.699010796
Multiply the value in cubic feet per minute by 1.699010796 to get cubic meters per hour.
Example
To convert 25 CFM to cubic meters per hour: 25 × 1.699010796 = 42.4753 m³/h.
Conversion table
| Cubic feet per minute (CFM) | Cubic meters per hour (m³/h) |
|---|---|
| 1 | 1.69901 |
| 2 | 3.39802 |
| 3 | 5.09703 |
| 5 | 8.49505 |
| 10 | 16.9901 |
| 20 | 33.9802 |
| 25 | 42.4753 |
| 50 | 84.9505 |
| 100 | 169.901 |
| 250 | 424.753 |
| 500 | 849.505 |
| 1,000 | 1,699.01 |
About the units
- Cubic foot per minute
- One cubic foot (28.316846592 L) passing each minute, the airflow unit for AC units, fans and ventilation.
- Cubic meter per hour
- One cubic meter passing each hour, 1/3600 m³/s, the usual unit for water pumps and ventilation.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many cubic meters per hour are in one cubic foot per minute?
1 CFM = 1.69901 m³/h exactly.
How do I convert cubic feet per minute to cubic meters per hour?
Use m³/h = CFM × 1.699010796. For example, 25 CFM = 42.4753 m³/h.
How many cubic feet per minute are in one cubic meter per hour?
1 m³/h = 0.588578 CFM.
How do I convert liters per minute to US gallons per minute?
One US gallon per minute is exactly 3.785411784 L/min, so divide the liters figure by 3.785411784. For example, 20 L/min is about 5.28 US gpm.
What does CFM mean on AC units and fans?
CFM stands for cubic feet per minute and describes how much air a unit moves. One CFM equals 1.69901079552 cubic meters per hour or 0.4719474432 liters per second.