Air Conditioner Tonnage Calculator

PARAMETER FEET INCHES
Length of Room
Breadth of Room
Height of Room
No of Person
Max Temperature (°C)

Required Size of Air Conditioner

1.06 Tons

Waiting for input...

How to use the tool

  1. Enter the Length, Breadth, and Height of your room in feet and inches.
  2. Input the maximum number of people that will occupy the room.
  3. Enter the highest expected outdoor temperature in Celsius for your area.
  4. The required AC tonnage is calculated automatically and displayed below.
  5. A detailed, live breakdown of the formula is shown next to the result.

Formula Used

Base Tonnage: ((Length × Breadth × 20) / 12000)

Person Factor: 0.3 for up to 3 people, +0.07 for each additional person.

Temperature Factor: Added tonnage based on max temperature (e.g., +0.2 for 35-40°C, +0.5 for >45°C).

Height Factor: +0.1 for each foot of ceiling height over 8 feet.

Total Tonnage = Base Tonnage + Person Factor + Temperature Factor + Height Factor

Disclaimer: All calculations are estimates based on the information you provide. It depends on several factors like city of use, no of people in a room,appliances in the room, etc