Formula & example
Qs≈1.08·CFM·ΔT°F BTU/h for standard air.
1,000 CFM with a 20°F temperature change transfers about 21,600 BTU/h or 1.8 refrigeration tons sensibly.
HVAC engineering calculator · Updated Sep 17, 2026
HVAC Sensible Heat Calculator — CFM, ΔT & BTU/h
Calculate sensible air-side heat transfer from airflow and temperature difference, with BTU/h, kW and tons outputs.
Inputs
Result
Sensible heat 21,600 BTU/h
Sensible heat 6.3303351 kW
Equivalent sensible tons 1.8 ton
Airflow 1,699.0108 m³/h
Assumptions & limits
- The 1.08 factor assumes standard-air density and heat capacity.
- Latent moisture load is excluded.
Frequently asked questions
What does this HVAC Sensible Heat Calculator calculate?
Calculate sensible air-side heat transfer from airflow and temperature difference, with BTU/h, kW and tons outputs.
Can I use SI and US customary units?
Yes. The calculator exposes the unit basis in the inputs and reports useful cross-unit outputs where the engineering workflow benefits from them.
Is this a replacement for HVAC design software?
No. It is a transparent deterministic engineering calculator for sizing, diagnostics and cross-checks. Final equipment, duct and refrigeration decisions should use measured conditions, manufacturer data and applicable codes or standards.