BTU Calculator

Find the perfect air conditioner size for your space

Room Dimensions

Length

Width

Ceiling Height

Sun Exposure

Heavily Shaded North-facing, trees block sun Average Some direct sunlight Very Sunny South/West-facing, lots of windows

Room Details

Room Type

Number of Occupants (typical)

Insulation Quality

Enter your room details and click calculate to see your recommended BTU

What is BTU?

BTU (British Thermal Unit) measures cooling capacity. A higher BTU means more cooling power. Choosing the right BTU ensures efficient cooling without wasting energy.

Quick Reference

Room Size	BTU Needed
150-250 sq ft	6,000 BTU
250-350 sq ft	8,000 BTU
350-450 sq ft	10,000 BTU
450-550 sq ft	12,000 BTU
550-700 sq ft	14,000 BTU