CFM per Ton Calculator

Many systems are designed around 350–400 CFM per ton, but the manufacturer's target governs.

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Formula

CFM/ton = CFM ÷ tons

Example calculation

1,200 CFM on a 3-ton system → 400 CFM/ton.

Practical HVAC use

Check airflow for dehumidification or capacity.

Common mistakes

Using nominal tonnage of a mismatched coil/condenser.

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Educational tool. Results are estimates from the stated formulas; always confirm with manufacturer data and the code adopted in your jurisdiction. All calculators