HVAC Calculator
Calculate the right HVAC system size for your space
Space Details
System Requirements
Cooling Capacity Needed
30000 BTU/hr
2.50 tons (calculated)
Recommended System Size
2.5 tons
30000 BTU/hr
Heating Capacity
33000 BTU/hr
Efficiency Ratings
Minimum SEER: 14
High Efficiency SEER: 20+
Higher SEER = Lower energy costs
Estimated Installation Cost
$6250.00
Average installed price (varies by region and brand)
Important:
• Oversized systems waste energy and don't dehumidify well
• Undersized systems run constantly and wear out faster
• Get a professional Manual J load calculation for accuracy
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.