In HVAC systems, airflow is commonly measured in CFM (Cubic Feet per Minute). Cooling capacity of air conditioning systems can be estimated using the standard HVAC airflow rule.
1 Ton Cooling Capacity ≈ 400 CFM
This rule is widely used for quick HVAC load estimation during duct design and airflow balancing.
Airflow = 800 CFM
Cooling Capacity = 800 ÷ 400
Required Capacity = 2 Ton
This calculator helps HVAC technicians convert airflow to approximate AC tonnage.
The standard HVAC rule is approximately 400 CFM of airflow per ton of cooling capacity.
A 2 ton air conditioning system typically requires around 800 CFM airflow.
Proper airflow ensures efficient heat transfer, balanced cooling and better system performance.
Yes. Low airflow reduces cooling efficiency and can cause coil freezing or compressor issues.