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How to choose the best Air Conditioner for your room (BTUs per hour/square feet chart)

Area To Be Cooled (square feet)	Capacity Needed (BTUs per hour)
100 up to 150	5,000
150 up to 250	6,000
250 up to 300	7,000
300 up to 350	8,000
350 up to 400	9,000
400 up to 450	10,000
450 up to 550	12,000
550 up to 700	14,000
700 up to 1,000	18,000
1,000 up to 1,200	21,000
1,200 up to 1,400	23,000
1,400 up to 1,500	24,000
1,500 up to 2,000	30,000
2,000 up to 2,500	34,000

If the room is heavily shaded, reduce capacity by 10 percent.

If the room is very sunny, increase capacity by 10 percent.

If more than two people regularly occupy the room, add 600 BTUs for each additional person.