AC Electricity Consumption Hub
All Tonnages & Brands India

AC electricity consumption depends on tonnage, star rating (ISEER efficiency), compressor technology (inverter vs fixed-speed), daily usage hours, room temperature, and local electricity rate per unit. A 1.5-ton 5-star inverter AC running 8 hours/day in Delhi consumes approximately 252 units per month at ₹7/unit.

Each brand uses different compressor efficiency, coil design, fan motor technology, and inverter algorithms. Daikin and LG typically run 3–5% more efficient than the baseline, while budget brands may run 1–2% higher wattage for the same cooling output.

At 8 hours/day usage and ₹7/unit electricity rate, a 1.5-ton 5-star inverter AC costs approximately ₹1,764 per month. At 12 hours/day, this rises to ₹2,646 per month. Costs scale linearly with usage hours and electricity rate.

A 5-star AC costs approximately 30% less per month than a 3-star AC of the same tonnage. For a 1.5-ton AC used 8 hours/day at ₹7/unit, the monthly difference is roughly ₹756 (₹1,764 vs ₹2,520). Over 5 years, this saves approximately ₹45,000 in electricity.

0.8 ton for up to 80 sq ft, 1 ton for 80–120 sq ft, 1.2 ton for 100–150 sq ft, 1.5 ton for 150–180 sq ft, 1.8 ton for 180–220 sq ft, and 2 ton for 220–280 sq ft. Add 0.3 ton if the room faces direct sunlight or has poor insulation.