Airflow cluster
Room Airflow Calculator
Calculate a transparent room airflow planning value.
How to use
Enter finished interior dimensions and a project ACH.
Formula
CFM = length × width × height × ACH ÷ 60
Variables
Dimensions form room volume; ACH reflects the intended air-exchange rate.
Example
12 × 10 × 8 ft at 6 ACH equals 96 CFM.
Result interpretation
Use this for preliminary planning; final HVAC design depends on the ventilation purpose and applicable code.
FAQ
Does room airflow equal cooling airflow?
Not necessarily. Cooling, outdoor-air, exhaust, and filtration airflow are distinct design questions.