AC Tonnage Calculator
Calculate the perfect BTU/hr capacity for your room based on area and other factors
Recommended AC Capacity
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Frequently Asked Questions
One ton of cooling capacity equals 12,000 BTU per hour. To convert BTU to tons, simply divide the BTU value by 12,000. For example, 24,000 BTU equals 2 tons.
Several factors influence AC tonnage needs: room size, ceiling height, number of occupants, window size and orientation, insulation quality, climate, heat-generating appliances, and whether the space receives direct sunlight.
An undersized AC will run constantly, increasing energy bills while failing to cool properly. An oversized AC will cool too quickly without proper dehumidification, leading to a cold but clammy environment and short cycling that reduces efficiency and equipment lifespan.
Generally, 1 ton of cooling capacity (12,000 BTU) can cool about 400-600 square feet in moderate climates. However, this varies based on factors like ceiling height, insulation, and sunlight exposure.