🏠 Everyday Life
HVAC Tonnage (Rough Rule)
Very rough AC tonnage from square footage (rule of thumb).
Results
- Rough tons
- 3.27
- Note
- Illustrative only — get a Manual J load calculation.
Formula / how it works
~1 ton per 500–600 ft² — climate and insulation vary wildly. Consult an HVAC pro.
Disclaimer: Results are estimates for educational purposes and are not a substitute for professional financial, medical, legal, or tax advice. Read more
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