Aircon Size Calculator

Not sure what aircon size is right for your room?

Our free Aircon Size Calculator helps Filipinos estimate the recommended HP or TR for bedrooms, living rooms, offices, stores, and full-house cooling setups. Simply enter your room details, sunlight exposure, appliances, and usage conditions to get a practical aircon recommendation, estimated electricity cost, and suggested aircon type. Try the calculator now and avoid buying an undersized or oversized air conditioner.

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How to Use the Aircon Size Calculator

Our Aircon Size Calculator helps you estimate the recommended aircon HP or TR for your room, office, living area, store, or full-house setup based on practical Philippine conditions.

Simply follow the steps below.

Step 1: Choose Your Area Type

Select the type of area you want to cool.

Options include:

  • Bedroom
  • Living Room / Sala
  • Office
  • Store
  • Computer / Gaming Room
  • Kitchen
  • Full House / Centralized Area
  • Commercial / Open Area

This helps the calculator estimate the cooling requirement more accurately.

Step 2: Select Your Preferred Aircon Type

Choose:

  • Auto Recommend
  • Window Type
  • Split Type
  • Floor Standing
  • Centralized / Multi-Split

If unsure, choose:

Auto Recommend

The calculator will suggest the most suitable aircon type based on your room conditions.

Step 3: Choose Inverter or Non-Inverter

Select:

  • Inverter Recommended
  • Non-Inverter / Standard
  • Not Sure

Inverter air conditioners are usually better for:

  • long daily usage
  • lower electricity consumption
  • quieter operation

Step 4: Enter Your Room Size

You can estimate room size in two ways:

Option 1 — Length × Width

Enter:

  • room length
  • room width

The calculator will automatically estimate the total square meter area.

Option 2 — Direct SQM Input

If you already know your room size, simply enter the total sqm directly.

Step 5: Select Ceiling Height

Choose:

  • Normal Ceiling
  • High Ceiling
  • Very High Ceiling

Rooms with higher ceilings usually require stronger cooling capacity.

Step 6: Choose Sun Exposure

Select:

  • Low / Shaded
  • Moderate
  • High / Direct Sunlight

Rooms exposed to direct sunlight may need higher HP air conditioners.

Step 7: Enter Number of People

Add the typical number of people inside the room.

More people produce more body heat, which increases cooling demand.

Step 8: Select Window or Glass Exposure

Choose:

  • Few / Small Windows
  • Normal
  • Many / Large Glass Windows

Large glass windows can make rooms hotter during daytime.

Step 9: Select Heat-Producing Appliances

Choose the closest option:

  • None / Minimal
  • TV or Laptop
  • TV + Computer / Refrigerator
  • Gaming PC / Kitchen Appliances

Heat-producing appliances can increase the required aircon size.

Step 10: Select Room Insulation

Choose:

  • Good / Well Sealed
  • Average
  • Poor / Many Air Leaks

Poor insulation may require stronger cooling because cold air escapes more easily.

Step 11: Enter Daily Usage Hours

Input how many hours the aircon will usually run daily.

Example:

  • 8 hours
  • 10 hours
  • 24 hours

This helps estimate electricity consumption.

Step 12: Enter Electricity Rate per kWh

Enter your estimated electricity rate.

If unsure, you may use:

₱12 per kWh

as a general Philippine estimate.

The calculator will instantly show:

  • Recommended HP or TR
  • Suggested Aircon Type
  • Estimated Cooling Capacity
  • Recommended Technology
  • Estimated Monthly Electricity Cost
  • Estimated Monthly kWh Usage
  • Aircon Sizing Warnings
  • Practical Buying Tips

Why This Calculator Matters

Choosing the wrong aircon size can lead to problems.

Too Small Aircon

May cause:

  • poor cooling
  • higher electricity bills
  • overworked compressor
  • faster wear and tear

Too Large Aircon

May cause:

  • short cycling
  • wasted electricity
  • humidity problems
  • uncomfortable cooling

Using the correct HP helps improve:

  • cooling efficiency
  • comfort
  • electricity savings
  • aircon lifespan

Important Disclaimer

This calculator only provides estimated recommendations based on common Philippine aircon sizing practices.

Actual cooling performance may vary depending on:

  • room layout
  • ceiling height
  • insulation
  • direct sunlight
  • appliance heat load
  • installation quality
  • aircon brand and model
  • maintenance condition

For the best results, always consult a qualified aircon technician before purchasing or installing an air conditioner.