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Airflow & Ventilation Tools

Size ductwork, calculate airflow, air changes per hour, pressure drops and fan static pressure for ventilation systems.

Calculate duct diameter or rectangular dimensions from airflow and velocity.

Calculate airflow from duct area and air velocity.

Convert Cubic Feet per Minute to cubic metres per hour.

Convert Litres per Second to cubic metres per hour.

Calculate how many times the air in a room is fully replaced per hour.

Calculate air velocity from airflow and duct cross-sectional area.

Calculate friction pressure loss in ductwork per metre of run.

Calculate the total static pressure a fan must overcome in a duct system.

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