PC Fan CFM to m3/h Calculator
Convert a computer/case fan's CFM rating to cubic meters per hour.
Enter your values
ⓘ Live results
Results
- Airflow
- 76.5 m3/h
- Airflow
- 21.24 L/s
- Airflow entered
- 45 CFM
Quick answer
Cubic meters per hour equals CFM multiplied by 1.699.
m3/h = CFM x 1.699
How to use the PC Fan CFM to m3/h Calculator
- 1Enter the fan's CFM rating from its datasheet.
- 2Read the equivalent airflow in cubic meters per hour and litres per second.
- 3Use this to compare fans specified in different regional units.
Worked example
Using the values the calculator loads with:
Inputs
- Fan CFM rating45 CFM
Results
- Airflow76.5 m3/h
- Airflow21.24 L/s
- Airflow entered45 CFM
Frequently asked questions
Why do some fans use m3/h and others CFM?
CFM is standard in North America; m3/h and L/s are more common in European and Asian datasheets.
Is this the same conversion for larger HVAC fans?
Yes, the CFM to m3/h conversion factor is the same regardless of fan size.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.