Airflow Calculator
Interactively calculate airflow or air speed based on duct dimensions.
Air Speed (m/s)
Airflow (L/s)
Circular Duct
Rectangular Duct
Custom Diameter (mm)
Or Select Preset Size
Select preset size
100 mm
150 mm
200 mm
250 mm
300 mm
350 mm
Duct Width (mm)
Duct Height (mm)