AC Room Size Calculator India 2026
Find the exact AC tonnage your room needs. Enter dimensions, ceiling height, sunlight exposure, and city climate for a live recommendation with energy-saving tips.
Room Size
144 sq ft
12 ft × 12 ft · 9 ft ceiling
Standard Recommendation
1.2 Ton
Based on 144 sq ft only
Adjusted Recommendation
1.5 Ton
Exact: 1.50 ton
Adjustment Breakdown
Energy Tip
For a 1.5 Ton AC in a 144 sq ft room, choose a 5-star inverter model for maximum savings. A 5-star inverter uses 30–40% less electricity than a 3-star non-inverter. If your usage is under 4 hours daily, a 3-star inverter is also a good value choice.
For a 144 sq ft room (12 ft × 12 ft) with 9 ft ceiling, moderate sun, and hot / dry climate, we recommend a 1.5 Ton AC. If you run the AC daily for 6+ hours, go with a 5-star inverter for long-term savings.
Why Size Matters
Avoid Oversizing
An oversized AC cools too fast, short-cycles, and wastes electricity. Proper sizing saves 15–20% on your bill.
Prevent Undersizing
An undersized AC runs non-stop, never reaches target temperature, and burns out the compressor early.
Account for Real Factors
Ceiling height, sunlight, top-floor heat, and city climate all affect tonnage. Our calculator adjusts for every factor.
Get Energy Tips
Every result includes a star-rating recommendation based on your usage pattern and room conditions.
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