Sensible Heat
Use the Sensible Heat for hvac planning. Enter Airflow (CFM) and Temperature difference (°F) to get a clear result, formula explanation, and practical checks.
Sensible Heat measurements
Enter your values, then calculate.
Result
How to calculate sensible heat
This calculator finds sensible heat load from airflow and temperature difference — the heat load associated with changing air temperature, as opposed to latent heat load from moisture.
How the calculation works
Sensible heat = 1.08 × Airflow (CFM) × Temperature difference. The 1.08 constant is a standard psychrometric conversion factor for this calculation in imperial units.
Example
800 CFM airflow with a 20°F temperature difference: 1.08×800×20 = 17,280 BTU/hr.
Frequently asked questions
How is Result calculated?
Result = 1.08 × [Airflow] × [Temperature difference].
Is the Sensible Heat free to use?
Yes — every calculator on Simple Calculator Tools is free, runs in your browser, and does not require an account.
Sensible Heat
Sensible heat = 1.08 × Airflow (CFM) × Temperature difference. The 1.08 constant is a standard psychrometric conversion factor for this calculation in imperial units.
Let's understand your sensible heat result.
Calculate a result above and this guide will help you interpret it using this calculator's own formula and explanation.
Pro Tips for Sensible Heat
- Total cooling or heating load is the sum of sensible (temperature) and latent (moisture) loads — this calculates only the sensible portion.
- The 1.08 constant assumes standard air density at sea level; at high altitude, air density is lower and this constant would need adjustment for precise calculations.
Common Sensible Heat Mistakes to Avoid
- Treating this sensible heat figure as the total heating/cooling load, when it needs to be added to the separately calculated latent load for total system sizing.
When to Use This Calculator
This calculator finds sensible heat load from airflow and temperature difference — the heat load associated with changing air temperature, as opposed to latent heat load from moisture.