HVAC Tonnage Calculator

~20 BTU per sqft for typical homes. 1 ton = 12,000 BTU.

About this tool

HVAC Tonnage Calculator is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.

Category: Trade & Construction Calculators. Browse more Trade & Construction Calculators tools.