CFM to m³/h Calculator
Convert cubic feet per minute to cubic metres per hour.
Enter your values
Enter the airflow 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
- 679.6 m³/h
- In m³/min
- 11.327
- In L/s
- 188.8
- In m³/s
- 0.1888
Working
- 1400 CFM x 1.69901 = 679.6 m³/h
Quick answer
One CFM equals 1.69901 cubic metres per hour.
m³/h = CFM x 1.69901
At a glance
| What it does | Convert cubic feet per minute to cubic metres per hour. |
|---|---|
| Category | HVAC & Airflow |
| Inputs needed | Airflow |
| Main output | Airflow |
| Formula | m³/h = CFM x 1.69901 |
| Cost | Free — no sign-up, no download |
How to use the CFM to m³/h Calculator
- 1Enter the airflow rating in CFM from the fan or spec sheet.
- 2Read the equivalent in m³/h, the unit used on most European fans.
- 3Use L/s when comparing against ventilation codes written in metric.
Inputs explained
- Airflow(CFM)
- Enter the airflow in CFM.
Worked example
Using the values the calculator loads with:
Inputs
- Airflow400 CFM
Results
- Airflow679.6 m³/h
- In m³/min11.327
- In L/s188.8
- In m³/s0.1888
- 400 CFM x 1.69901 = 679.6 m³/h
Frequently asked questions
Why do European fans use m³/h?
Metric ventilation standards rate airflow per hour, so m³/h keeps the numbers convenient for whole-room air changes.
Is CFM the same as SCFM?
No — SCFM is corrected to standard temperature and pressure. At sea level and room temperature they are close enough for ventilation work.
What do I need to enter into the CFM to m³/h Calculator?
Just 1 value: airflow. 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 CFM to m³/h Calculator work out the answer?
One CFM equals 1.69901 cubic metres per hour. It applies the formula m³/h = CFM x 1.69901 and shows the working so you can check each step by hand.
Is the 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.