How To Calculate The Air Conditioner Size For Your Whole House

To calculate the ideal ducted aircon size for your house, follow these simple steps:

  1. A rough calculation of the size of your DAYTIME living areas – kitchens, family rooms, lounges, media, study, entrances, hallways, stairs.
    *Bedrooms aren’t used as much during the day
  2. Multiply the size of your daytime living areas by ceiling height. High ceilings require more air to cool.
  3. Modifiers

    This rough calculation can be affected by a number of factors, including insulation or large windows. Mention this calculation when you speak with one of our experts.

Quick Estimate for Total House System

Ensure that your new air conditioner is sized right for the intended application by using our fast and free online load calculator.

Enter the details of the room where your air conditioner will be installed in for the ideal size/capacity in Kilowatts (kW).

Please note that this tool is intended to be a guide only. We suggest seeking the advice of a specialised air conditioning dealer before purchasing.

Quick Estimate per Room

* To calculate the size of your room in square meters, multiply the length of the room with the width of the room. For example, if the room is 6 metres long and 5 metres wide, it would be 30m².