AC Size Formula:
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The AC size calculation estimates the cooling capacity needed for a room based on its square footage. One ton of cooling capacity equals 12,000 BTU per hour, which can cool approximately 600 square feet of space.
The calculator uses the simple formula:
Where:
Explanation: This basic calculation provides a starting point for determining appropriate air conditioner size for a given space.
Details: Properly sizing an air conditioner is crucial for energy efficiency and comfort. An undersized unit won't cool adequately, while an oversized unit will cycle on and off too frequently.
Tips: Measure your room's length and width to calculate square footage. For irregularly shaped rooms, divide into rectangular sections and add their areas together.
Q1: Is this calculation accurate for all rooms?
A: This is a basic calculation. Factors like ceiling height, insulation, sunlight exposure, and climate may require adjustments.
Q2: What if my room has high ceilings?
A: For ceilings over 8 feet, increase capacity by about 10% for each additional foot.
Q3: How does sunlight exposure affect AC size?
A: Very sunny rooms may need 10-20% more capacity, while heavily shaded rooms may need 10% less.
Q4: What about rooms with many windows?
A: Each standard window adds about 1,000 BTU to the cooling load.
Q5: Should I round up or down?
A: It's generally better to round up to the nearest half-ton for better performance on hot days.