Free online tool
Air Conditioner Sizing Calculator
Make sure your new air conditioner is sized right for the room. Pop in your room details, hit Calculate, and you'll have the ideal capacity in kilowatts (kW) to work from — fast and free.
The calculator
Work out your size
Enter the details of the room your air conditioner will go in and press Calculate for the ideal size in kilowatts (kW).
Room Air Conditioner (Split System) Online Sizing Calculator
A guide only — it can't account for your home's locality, aspect, window loads and the like. For an exact result, ask us about a tailored heat load.
Next steps
Got your size? Here's where to go next
Not sure where to start?
Tell us about the room and we'll size it, price it, and have the right system installed — call, drop in, or send us a message.