Air Conditioner Size Calculator
Estimate the likely air-conditioning size using room dimensions, insulation, glazing, orientation, shading and other heat-load factors. The result is indicative only and a Coolcare technician confirms the final capacity and model before quotation.
Room-by-room sizing
Indicative size first. Technician confirmation before quote.
We collect room use, dimensions, external walls, construction, roof/floor condition, glazing, window exposure, orientation, shading, occupancy and open-space influences. These inputs are combined with Coolcare's detailed sizing logic and a manufacturer room-sizing cross-check before an indicative result is shown.
Which sizing pathway do you need?
Choose the closest starting point. This changes the questions we ask; it does not automatically select a brand or model.
Where is the property?
The calculator is intended for Coolcare's Victorian residential service area. Suburb and postcode are used to apply the appropriate climate handling or trigger technician review.
This is recorded for technician review only. The calculator does not apply an automatic diversity reduction; final zoning and simultaneous-use assumptions are checked by the technician.
Add each room or area to be conditioned.
For multi-split and ducted systems, enter rooms separately. This is more accurate than using total floor area alone.
Check the room-level heat-load factors.
The room cards include the construction and exposure factors used in sizing. Use this step to confirm any details you were unsure about.
External walls, roof/floor exposure, glazing, west/east sun, shading and open adjoining spaces can materially change the load even when two rooms have the same floor area.
Select Unknown where you are genuinely unsure. The calculator lowers its confidence rather than pretending the input is known.
Review your sizing inputs.
Your indicative sizing result
The result combines Coolcare's room-by-room load calculation with a manufacturer room-sizing cross-check. A technician still confirms the final model before quotation.
For split systems this is the likely capacity class, not a final brand/model selection.
Efficient, Standard, Elevated or High load profile based on the room inputs.
Indicative room/load range only. Final equipment capacity is confirmed by Coolcare after review.
Indicative heating range only. A Coolcare technician confirms the final system before quotation.
Email me a copy of these results
Enter your details to email yourself a copy. We will also send the same result to Coolcare. If you want us to contact you about the result, tick the optional box below.
Two checks, one technician-confirmed result.
The calculator combines a detailed room-load calculation with a manufacturer room-sizing cross-check. The system class shown is indicative, not an automatic product selection.
Coolcare confirms before quoting.
A Coolcare technician reviews the room details, confirms the final capacity and model, and checks installation requirements before the quote is issued.
We Take Pride in Your Comfort
Need help with your heating or cooling?
Call Coolcare or send us a service or quote request.