Air Conditioner BTU Calculator
Estimate the cooling capacity your room may need. Enter room dimensions and adjust for ceiling height, sunlight and occupancy.
How to Use the Air Conditioner BTU Calculator
Enter the room dimensions and any additional conditions requested by the tool to estimate a suitable cooling capacity.
Practical Example
A medium-size room may require roughly 10,000 to 12,000 BTU per hour depending on area, ceiling height, sunlight and occupancy. The calculator converts your inputs into a practical estimate.
Factors That Affect the Result
Room size, ceiling height, insulation, climate, sun exposure, windows, occupants and heat-producing appliances can all change the cooling load.
Frequently Asked Questions
What does BTU mean?
BTU is a unit of heat energy commonly used to describe air-conditioner cooling capacity.
Is a larger AC always better?
No. Oversizing can cause short cycling and poor humidity control.
Is this a professional load calculation?
No. It is a planning estimate and complex spaces may require professional sizing.