Cassette AC Size Calculator
& Tonnage Guide
Stop guessing. Get a precise cassette AC tonnage recommendation for your commercial space — calibrated for Indian heat loads, occupancy levels, and ceiling heights.
Rated 4.8 out of 5 by 2,340+ users — India's most trusted AC bill calculator
8+ years practical experience in AC / Plant Installation, Maintenance and Repair. HVAC Expert at S.R Enterprise under the authorized dealership of Hitachi. All data is verified against 2026 BEE Tariff Orders and manufacturer specifications.
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Enter your space details and click Calculate to get size recommendations.
How This Calculation Works
Commercial HVAC calculations use verified BEE 2026 data and industry-standard formulas.
Select Space Type
Office, showroom, banquet, clinic, or restaurant.
Enter Dimensions
Area in sq ft and ceiling height.
Set Conditions
Sunlight exposure and expected occupancy.
Get Recommendation
Tonnage, CFM, and best cassette AC models.
Got your size? Now find the best cassette AC.
Match your tonnage to the top-rated models with inverter technology.
Cassette AC Prices
Compare all brands and tonnage options with real Indian pricing.
Inverter Cassette AC
Why inverter models are essential for commercial spaces.
Electricity Calculator
Calculate monthly bill for your recommended tonnage.
Ready to buy?
Compare Daikin, LG, Blue Star, and Voltas cassette AC models.
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