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Find the right AC size for your room

Answer 4 quick questions — our calculator considers 8 factors to recommend the exact tonnage you need.

1
Room
2
People & use
3
Location
4
Result
Room dimensions
Length & width (in feet)
Length (ft)
Width (ft)
Ceiling height
Floor level
Top-floor rooms absorb more heat through the roof
People & usage
How many people usually use this room?
2
people
Each person contributes about 400 BTU/hr of body heat
Total glass window area
sq ft
Add up all window glass in the room. A typical bedroom window ≈ 15–20 sq ft
Which direction does the room face?
West-facing rooms get strong afternoon sun — highest heat gain
Heat-generating appliances in the room
TVs, computers, bright lights, etc.
Location & room type
Which state is the room in?
Room type
Building insulation quality
Good insulation means the room retains cool air — less load on your AC
Recommended AC capacity
–
ton
Room area
–
Total heat load
–
Climate zone
–
Star rating tip
–
Call Sabar AC — get a quote
This calculator provides an estimate based on standard ASHRAE guidelines.
For precise sizing, our technicians can do a free on-site assessment.

Too small = overwork

An undersized AC runs non-stop, struggles to cool, and wears out faster — costing you more in electricity and repairs.

Too large = humidity problems

An oversized AC cools quickly but cycles off before removing humidity, leaving the room feeling damp and clammy.

Right size = comfort + savings

Correctly sized AC maintains temperature steadily, keeps humidity low, and uses the least energy for your room.