Q:

# When buying an air conditioner, how many square feet can one ton cool?

A:

One refrigeration ton, which is approximately 12,000 BTU or 3.517 kW, can cool about 500 square feet of space. However, other factors, such as the number of occupants, should be taken into consideration when calculating the cooling capacity of air conditioners.

## Keep Learning

When deciding what size of air conditioner to get for a given space, one factor to consider other than the area is the location of the room, whether it receives significant sunlight or is in a shaded area. Other important considerations are the weather characteristics of the geographic location and if there are other cooling or heating sources in the room or building.

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## Related Questions

• A:

There are 3.517 kilowatts in a ton of refrigeration, so in order to convert kW to tons, divide the number of kW by 3.517. One ton of refrigeration is approximately 12,000 BTUs, or British thermal units, which is the rating system of air conditioning units in many English-speaking countries outside of the United States.

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• A:

The number of British thermal units necessary in an air conditioner is determined in part by the square footage of the space to be cooled. Other factors include amount of sunlight regularly in the space, the type of space, and the number of people who regularly occupy the space.

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• A:

Air conditioning tonnage per square foot is the ratio of the air conditioner's capacity divided by the square footage of the space it services. Experts typically use the opposite ratio of square footage per ton of air conditioning capacity.