BTUcalc

BTU to Tons Converter

Convert BTU to tons of cooling and back. One ton equals 12,000 BTU — see what size air conditioner your BTU number means.

Runs locally in your browser — no upload, no tracking
BTU

Try: BTU=12000 → 12,000 BTU, 1.000 ton, 1 × 12,000 BTU

How to use

Air conditioners are sized in tons, where 1 ton = 12,000 BTU per hour. Enter any BTU number and press Calculate to see the equivalent tons. Multiply tons by 12,000 to go the other way.

Reviewed by HVAC technician Mike R.

FAQ

How many BTU is one ton?

One ton of cooling is exactly 12,000 BTU per hour. So a "2 ton" system moves 24,000 BTU/hr and a "2.5 ton" system moves 30,000 BTU/hr.

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