Cooling Load Calculator for Air Conditioning

1. Units

Pick Celsius or Fahrenheit for temperature.

Pick meters or feet for room size.

2. Room Conditions

Enter desired room temperature (°C or °F).

Select humidity level based on room use.

3. Air Conditioner Type

Ducted systems require more power.

4. Room Size

Enter length (meters or feet).

Enter width (meters or feet).

Enter height (meters or feet).

Shows room shape, windows, and sun exposure from above.

5. Walls, Windows, and Ceiling

Wall A

Select wall material.

m² or ft²

Enter window area (max 80% of wall).

Select window type (SC: solar gain, U: insulation).

Select external shading (lower factor reduces solar heat gain).

Wall B

Select wall material.

m² or ft²

Enter window area (max 80% of wall).

Select window type (SC: solar gain, U: insulation).

Select external shading (lower factor reduces solar heat gain).

Wall C

Select wall material.

m² or ft²

Enter window area (max 80% of wall).

Select window type (SC: solar gain, U: insulation).

Select external shading (lower factor reduces solar heat gain).

Wall D

Select wall material.

m² or ft²

Enter window area (max 80% of wall).

Select window type (SC: solar gain, U: insulation).

Select external shading (lower factor reduces solar heat gain).

Select ceiling material.

6. Outside Conditions

Enter average outside temperature (°C or °F).

Select peak heat time.

Select outside humidity level.

7. Inside Conditions

Enter number of occupants.

Select occupant activity level.

LED lights generate less heat.

Enter number of lights.

Enter number of heat-generating devices.

Select required air flow.

Select air leak level.