AC Load Calculator (Room AC Capacity)

How This AC Load Calculator Works

This AC load calculator helps estimate the required air conditioner capacity based on room area, ceiling height, glass exposure and city climate conditions.

Factors Affecting AC Capacity

  • Room area (square feet)
  • Ceiling height
  • Glass windows and solar heat gain
  • City temperature and climate zone
Basic Calculation Method

Base AC Load = Room Area ÷ 120

Climate Factor = City temperature adjustment

Glass Load = Additional heat from windows

Final AC Capacity = (Room Area × Climate Factor × Height Factor + Glass Load) ÷ 120

Example

Room Area = 200 sq.ft
City = Surat (Hot Climate)
Ceiling Height = 10 ft
Glass Area = 30 sq.ft

Recommended AC Capacity ≈ 1.5 Ton

This tool helps homeowners and HVAC installers select the correct AC tonnage for efficient cooling.

Room AC Capacity Calculator

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Frequently Asked Questions

1. How many ton AC is required for 200 sq ft room?

Generally 1.5 Ton AC is suitable for 180–220 sq ft room depending on height and heat load.

2. How is AC load calculated?

AC load depends on room area, city temperature, ceiling height and glass exposure.

3. What happens if AC tonnage is undersized?

Undersized AC runs continuously and increases electricity bill.

4. Which AC is best for Surat climate?

5-star inverter AC with proper tonnage is best for Surat’s hot climate.