PC Fan CFM to m3/h Calculator
Convert a computer/case fan's CFM rating to cubic meters per hour.
Enter your values
Enter the fan cfm rating in CFM.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- 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
At a glance
| What it does | Convert a computer/case fan's CFM rating to cubic meters per hour. |
|---|---|
| Category | HVAC & Airflow |
| Inputs needed | Fan CFM rating |
| Main output | Airflow |
| Formula | m3/h = CFM x 1.699 |
| Cost | Free — no sign-up, no download |
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.
Inputs explained
- Fan CFM rating(CFM)
- Enter the fan cfm rating in CFM.
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.
What do I need to enter into the PC Fan CFM to m3/h Calculator?
Just 1 value: fan cfm rating. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the PC Fan CFM to m3/h Calculator work out the answer?
Cubic meters per hour equals CFM multiplied by 1.699. It applies the formula m3/h = CFM x 1.699 and shows the working so you can check each step by hand.
Is the PC Fan CFM to m3/h Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.