BTU by room size
The cooling BTU, tonnage, and recommended unit for common room dimensions. Pick a size, or run your exact room through the calculator.
10 × 10 room
100 sq ft
5,000 BTU · 0.4 ton
10 × 12 room
120 sq ft
5,000 BTU · 0.4 ton
12 × 12 room
144 sq ft
5,000 BTU · 0.4 ton
12 × 14 room
168 sq ft
5,000 BTU · 0.4 ton
12 × 16 room
192 sq ft
5,000 BTU · 0.4 ton
12 × 20 room
240 sq ft
5,000 BTU · 0.4 ton
14 × 16 room
224 sq ft
5,000 BTU · 0.4 ton
15 × 15 room
225 sq ft
5,000 BTU · 0.4 ton
16 × 16 room
256 sq ft
6,000 BTU · 0.5 ton
16 × 20 room
320 sq ft
8,000 BTU · 0.7 ton
20 × 20 room
400 sq ft
8,000 BTU · 0.7 ton
20 × 24 room
480 sq ft
10,000 BTU · 0.8 ton