❄️ Air Conditioner Size Calculator
Number of Stories
1 story
2 stories
3+ stories
Climate Zone
Very Hot — Zone 1 (South FL, Hawaii)
Hot — Zone 2 (TX, LA, AZ)
Mixed — Zone 3 (Most of TX, GA)
Mixed-Humid — Zone 4 (Mid-Atlantic)
Cool — Zone 5 (Great Lakes)
Cold — Zone 6 (MN, WI, MT)
Insulation Quality
Poor — older home
Average — some insulation
Good — modern standards
Excellent — well sealed
Superior — Energy Star
Ceiling Height
Standard — 8 ft
9 ft
10 ft
12 ft vaulted
Sun Exposure
Heavily shaded
Moderate sun
Full sun — south/west facing
❄️ Calculate AC Size
0
Tons of Cooling Required
⚠️ Important: This is an estimate only. A licensed HVAC contractor should perform a Manual J load calculation for accurate sizing. Improper sizing reduces efficiency and voids warranties.