HVAC Calculator
Free HVAC Calculator — calculate and compare options instantly. No signup required.
sq ft
8 ft
Cooling BTUs Needed
50,000 BTU/hr
AC Size (Tons)
4.2 tons
Recommended Furnace
80k BTU furnace
How to Use the HVAC Calculator
- 1. Enter your values — fill in the input fields with your numbers.
- 2. Adjust settings — use the sliders and selectors to customize your calculation.
- 3. View results instantly — calculations update in real-time as you change inputs.
- 4. Compare scenarios — adjust values to see how changes affect your results.
- 5. Share or print — copy the link, share results, or print for your records.
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