Inverter AC Tonnage Calculator

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.