• Air Conditioner Size Calculator

    Not sure what system is right for your space? Use our calculator to estimate the right split, multi-split, ducted, or VRF air conditioning size for your home or project.

    Get instant results and request a quote in seconds.

  • Your Results Explained

    Your result gives you a general estimate of the cooling capacity needed for your room or area. It is based on room size, ceiling height, sun exposure, insulation, and other key factors.

    As a general guide:

    • 2.5 kW – small bedroom or study
    • 3.5 kW – standard bedroom
    • 5.0 kW – larger bedroom or small living area
    • 6.0 to 7.1 kW – medium to large living areas
    • 8.0 kW+ – open-plan spaces or larger areas

    This calculator is a guide only. Final sizing may vary depending on layout, glazing, orientation, zoning, and installation conditions.

  • Get a Fast Quote

    Already know your estimated size? Send us your details and we’ll help you choose the right system for your home or business.

  • Why Choose Palm Tree Electrical & Air Conditioning

    We provide reliable air conditioning solutions for homes and businesses, with expert advice, quality workmanship, and systems tailored to your space and budget.

    • Licensed and insured technicians
    • Split system and ducted air conditioning specialists
    • Residential and commercial service
    • Fast quotes and professional advice
    • Quality installation and workmanship
  • Choosing the Right Air Conditioner Size Matters

    Choosing the right size air conditioner is important for comfort, efficiency, and long-term performance.

    A system that is too small may struggle to cool the room properly and run constantly, increasing power bills. A system that is too large may short cycle, waste energy, and reduce comfort.

    A correctly sized system can help improve efficiency, reduce running costs, and deliver more consistent cooling throughout the space.

    Whether you are comparing a split system for a bedroom or a ducted air conditioning system for a larger home, starting with the right size is the first step.

  • Frequently Asked Questions

    Question 1
    What size air conditioner do I need for a bedroom?

    Answer
    Most bedrooms need a 2.5 kW to 3.5 kW system, depending on room size, insulation, and sun exposure.

    Question 2
    What size air conditioner do I need for a living room?

    Answer
    Living rooms often need between 5.0 kW and 7.1 kW or more, especially if the area is open-plan.

    Question 3
    Is this calculator accurate?

    Answer
    This calculator provides a useful estimate, but final system sizing should be confirmed by a professional assessment.

    Question 4
    Do you supply and install air conditioning?

    Answer
    Yes, we supply and install split system and ducted air conditioning systems for residential and commercial properties.