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Size of Air Conditioning For Room - MS Excel Spreadsheet
Size of Air Conditioning For Room – MS Excel Spreadsheet

Introduction to spreadsheet

The following calculation spreadsheet is used to determine the capacity of room air conditioner:

  1. Size of Air Conditioning for Your Room
  2. AC Size in BTU/Hr
  3. AC size in Tone
  4. Heating and Cooling BTU

Following Room Details are inputs:

  • Length of room(foot)
  • Width of room(foot)
  • Windows in north side
  • Window in south side
  • Total room area in sq.foot
  • Is there any blinds on the windows?
  • Number of persons who may utilize the room
  • Electrical Appliances in The Room:
    • Electrical Equipment
    • Electrical Lighting
Software:Calculate size of air conditioning for room
Version:22.8.2012 New
Developer:Jignesh Parmar
Size:43 kB
Downloads:Right here | Get Download Updates | Get Technical articles
Calculate size of air conditioning for room
Calculate size of air conditioning for room

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Page edited by E.C. (Google).


  1. Gopi
    Jan 03, 2016

    I hope, we must consider the volume of the room in calculations. Since heat transfer coefficient value for window is higher compared to bricks wall, we shall consider the windows in all directions.

  2. shabmanu
    May 18, 2015

    what if the the window is in east and west? ,do we need to consider door?

    thanks in advance

  3. shabmanu
    May 18, 2015

    thanks for the spread sheet

    if the window is facing east or west ,what will be the changes in calculation ,do i need to consider door measurement ,waiting for ur reply ,thanks

  4. Hayder
    Oct 23, 2014

    It is wonderful excel sheet, but how can I calculate the AC capacity without input the height of building, I have a room 20×10 m2 and 12 m height and the result of this sheet does not match the requirement.

  5. andrewelec
    Aug 28, 2013


    How can we make a correction to external temperature?

  6. Mohamed Shafei
    Mar 05, 2013

    I cannot download the file

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