Metric Unit Calculator
Construction calculator

CFM Calculator

Calculate airflow required for a target air-change rate.

Required airflow (CFM): -
Calculation explained

How this result was calculated

The formula, your substituted values, and the evaluated result are shown below.

This is a planning estimate. Confirm dimensions, allowances, material specifications, applicable codes, and supplier requirements before purchasing or construction.
Recommended resources

Products that may help

Recommended

Udemy Education

Udemy is an AI-powered skills acceleration platform transforming how companies and individuals across the world build the capabilities needed to thrive in a rapidly evolving workplace.

View offerAffiliate link — we may earn a commission at no extra cost to you.

How the CFM Calculator works

Calculate airflow required for a target air-change rate.

Before using the result

This is a planning estimate. Confirm dimensions, allowances, material specifications, applicable codes, and supplier requirements before purchasing or construction.

Keep exploring
AC Tonnage CalculatorEstimate air-conditioning capacity from floor area and design load.Air Changes per Hour CalculatorCalculate air changes per hour from airflow and room volume.Air Conditioner BTU CalculatorEstimate air-conditioner capacity.Aluminum Weight CalculatorEstimate aluminum sheet or plate weight using a standard density.Angle Cut CalculatorCalculate an equal angle cut for a symmetric joint.Angle of Depression CalculatorCalculate angle of depression.