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AC Tonnage Calculator

Right AC size for your room - tonnage by size, sunlight and floor.

Enter details

How to use

  1. Fill in: Room size, Unit, Regular occupants, Direct sunlight on room and Top floor (roof above)?. Fields with defaults or marked optional can stay as shown.
  2. Tap Calculate AC Size.
  3. Read the result - you can print or save it as PDF.

Worked example

With Room size = 150, Unit = Square feet, Regular occupants = 2, Direct sunlight on room = Low / shaded, Top floor = No:

RECOMMENDED AC CAPACITY1.5 Ton
Room-size table per Haier India guidance for Indian homes. Actual heat load also depends on insulation, window size and appliances - a dealer site survey gives the final word.