AC BTU Calculator - Accurate Air Conditioner Sizing

Quickly calculate the ideal BTU for your space with our AC BTU Calculator. Find the perfect cooling power for your room, apartment, or whole house—window unit or central AC!

📏 Room Size

📐 Ceiling Height

🔢 Number of People

🏠 Room Type

🛠️ Insulation Condition

☀️ Sun Exposure

🌍 Climate

➤ Related

Heating BTU Calculator
Mini Split BTU Calculator