HVAC Size Calculator
Calculate the proper HVAC system size in tons based on your heating and cooling load.
Enter your BTU load and click Calculate
Recommended HVAC size will appear here.
Enter Load Requirements
Combined heating + cooling load in BTU
Related Resources & Tools
For more information on HVAC sizing and system selection:
- What Size HVAC System Do You Need? - Complete sizing guide with detailed explanations
- HVAC Installation Cost Guide USA and Canada - Complete installation pricing guide
- Heat Pump vs Furnace Cost Comparison - Compare system options and costs
- Are Energy-Efficient HVAC Systems Worth It? - Analyze efficiency investments
For official HVAC sizing standards and guidelines:
- U.S. Department of Energy - Heat and Cool Guide
- ENERGY STAR - Heating and Cooling Products
- DOE - Home Heating Systems
Disclaimer: This calculator provides rough estimates for HVAC sizing. For accurate sizing, consult a licensed HVAC contractor for a Manual J calculation.