Inverter AC Tonnage Calculator
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Calculate the ideal inverter AC tonnage for your room based on dimensions, occupancy, appliances, and regional climate factors.
🧊 Inverter AC Tonnage Calculator — Find the Right AC Size for Your Indian Home
Buying an air conditioner? Don't guess the tonnage. This free calculator tells you exactly what inverter AC size your room needs — based on real factors, not just floor area.
🔢 HOW IT WORKS
Simply enter your room details and the calculator computes the total cooling load (BTU) and recommends the nearest standard inverter AC tonnage from 0.8 to 3.0 ton.
📋 INPUTS CONSIDERED
• Room dimensions — length, breadth & ceiling height (in feet)
• Number of occupants in the room
• State / region — climate-adjusted for all 37 Indian states & UTs
• Floor level — ground floor to top floor / terrace
• Glass window area & direction (north, south, east, west)
• Appliances — refrigerator, bulbs, fans, TV
📐 CALCULATION FACTORS
• Base cooling load: 20 BTU per sq. ft.
• Height adjustment for ceilings above 10 ft
• +600 BTU per extra person beyond 2
• +35 BTU per sq. ft. of glass window area
• Appliance heat load (fridge: 1200, bulb: 100, fan: 75, TV: 300 BTU)
• Percentage adjustments for floor exposure, sun direction & regional climate
📊 RESULTS SHOWN
• Room area & window area
• Total BTU/hr cooling requirement
• Raw tonnage value
• Recommended standard inverter AC size (0.8, 1.0, 1.2, 1.5, 1.8, 2.0, 2.5, or 3.0 ton)
💾 SMART FEATURES
• Auto-saves your form data — resume anytime
• Input validation with helpful error messages
• Works 100% offline — no data sent anywhere
• Beautiful dark-themed, responsive interface
Perfect for homeowners, interior designers, HVAC professionals, and anyone shopping for an inverter AC in India.
Latest reviews
- Дас
- This is really VERY handy appliction to find out what is the correct tonnage of AC as per your requirement. It consider all practical parametrs to figure out what is right AC for you. It also fine tune the calculation based on other imputs like, • Height adjustment for ceilings above 10 ft • Accomodation of extra person beyond 2 • Glass window area etc,. I find it quite impressive !