Air Balancing Calculator

Input Parameters

Imperial (°F, BTU, ft)SI (°C, kW, m)

Design Airflow (CFM)

Measured Airflow (CFM)

Design Pressure (in WG)

Measured Pressure (in WG)

Airflow Ratio %

Pressure Ratio %

Adjustment Factor

Formula:

R_{flow} = \frac{Q_{measured}}{Q_{design}}

Calculation:

R_{flow} = \frac{950}{1000}

Result:

95.0 \text{ %}

Formula:

R_{pressure} = \frac{P_{measured}}{P_{design}}

Calculation:

R_{pressure} = \frac{1.80}{2.00}

Result:

90.0 \text{ %}

Formula:

F_{adj} = \sqrt{\frac{Q_{design}}{Q_{measured}}}

Calculation:

F_{adj} = \sqrt{\frac{1000}{950}}

Result:

1.026 \text{ }