Air Conditioner Sizing
There are many factors in determining the proper size air conditioner for a room, square footage, number of occupants, is the room shaded or not and is the unit being used in a Kitchen.For a general guideline to determine the portable or window air conditioner you will need, the chart below can be used. First calculate your room size in square feet. To calculate the room size, multiply the room length by the room width.
| Min/Max Room Size | Air Conditioner Capacity |
| 100 - 150 sq ft | 5,000 BTU |
| 150 - 250 sq ft | 6,000 BTU |
| 250 - 300 sq ft | 7,000 BTU |
| 300 - 350 sq ft | 8,000 BTU |
| 350 - 400 sq ft | 9,000 BTU |
| 400 - 450 sq ft | 10,000 BTU |
| 450 - 550 sq ft | 12,000 BTU |
| 550 - 700 sq ft | 14,000 BTU |
| 700 - 1000 sq ft | 18,000 BTU |
| 1000 - 1200 sq ft | 21,000 BTU |
| 1200 - 1400 sq ft | 23,000 BTU |
| 1400 - 1500 sq ft | 24,000 BTU |
| 1500 - 2000 sq ft | 30,000 BTU |
| 2000 - 2500 sq ft | 34,000 BTU |
There are many factors in determining the proper size air conditioner for a room. Factors to consider:
- Shaded room: Reduce by 10%
- Sunny Room: Increase by 10%
- If the room is occupied by more than 2 people: Increase by 600 BTUs
- Kitchen application: Add 4,000 BTUs