Best AC Size for 20x20 Room

400 sq ft — Recommended: 1 Ton (10,600 BTU)

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AC Recommendation for 20x20 Room

Room Size

400 sq ft

Recommended

1 Ton

BTU Required

10,600

1 Ton Split AC

Factors to Consider:

  • Add 10% for kitchens or rooms with lots of electronics
  • Add 15% for rooms with high ceilings (above 10 feet)
  • Add 10% for west-facing windows with direct sunlight
  • Consider inverter AC for 25-40% energy savings

Room Details

Enter your room specifications

ft
ft
ft

Additional Factors

Recommended AC Size

Based on your room specifications

Frequently Asked Questions

What AC size do I need for a 20x20 room?▼

For a 20x20 room (400 sq ft), we recommend a 1 Ton AC with 10,600 BTU capacity.

How many BTU for a 400 sq ft room?▼

A 400 sq ft room typically needs 10,600 BTU of cooling capacity. This is equivalent to 1 Ton of cooling.

Can I use a smaller AC for my 20x20 room?▼

While a smaller AC might cool the room eventually, it will run constantly, use more electricity, and may not adequately dehumidify.