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Air Conditioner Size Calculator

Length of Room feet
Breadth of Room feet
Height of Room feet
No. of Persons
Max Temperature °C
AC Size Tons

Air Conditioner

  • Air conditioning maintains temperature, humidity, and air purity.
  • It removes heat and moisture from indoor air and expels it outside.

Uses

  • Used to cool indoor spaces by transferring heat outdoors.
  • Distributes cooled air through ventilation systems.

Types

  • Window air conditioners
  • Portable air conditioners
  • Split and multi-split systems
  • Ducted air conditioners

Formula

  • Base Load = (Length × Breadth × 20) / 12000
  • Height Factor: +0.10 per foot above 8 ft
  • Person Factor: 0.30 (up to 3 persons) + 0.07 per extra person
  • Temperature Factor: 0.20 (≤35°C), 0.30 (36–40°C), 0.40 (41–45°C), 0.50 (>45°C)
  • AC Size (Tons) = Base + Height + Persons + Temperature

How to Calculate?

  • Enter room length and breadth.
  • Enter room height.
  • Enter number of occupants.
  • Enter maximum ambient temperature.
  • Click Calculate to get AC size in tons.

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