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BTU to tons calculator

Convert an air conditioner's rated cooling capacity from BTU per hour to refrigeration tons and kilowatts.

Cooling capacityUse the BTU/h value printed on the rating plate or specification sheet.BTU/h

See the conversion formula

Find the capacity on the label

Look for cooling capacity in BTU/h. Do not use the electrical input rating in watts.

Some model numbers contain a capacity code, but the rating plate or specification sheet is the safer source.

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HVAC Judge provides general information and planning estimates, not a diagnosis, installation design, warranty decision, or contractor quote. Check equipment details with the manufacturer and use a qualified HVAC professional before repair, replacement, or installation.