AC Power Consumption Calculator

Indian Seasonal Energy Efficiency Ratio (ISEER) is the ratio of cooling heat load removed (in Wh) to the total electricity energy consumed (in Wh) annually. Higher values mean higher efficiency.

A typical 1.5 Ton 3-Star inverter AC draws about 1.0 to 1.2 kW per hour during active cooling. Over an 8-hour period, it consumes roughly 6 to 8 units (kWh) of electricity, depending on the temperature setting and ambient outdoor heat.

Yes. A 5-Star inverter AC is roughly 15-20% more energy-efficient than a 3-Star AC, saving about 150-200 units annually. For a standard tariff of Rs. 8.00/unit, this translates to savings of Rs. 1,200 to Rs. 1,600 per year, offsetting the price premium in 2 to 3 years.

Set your AC to 24°C or 25°C. According to the Bureau of Energy Efficiency (BEE), every degree increase in the AC temperature setting saves approximately 6% of electricity. Setting your AC to 24°C instead of 18°C can reduce your AC's power consumption by up to 36%.

AC tonnage measures cooling capacity (1 Ton = 12,000 BTU/hr). Standard sizing rules: up to 100 sq ft requires a 1.0 Ton AC, 100–150 sq ft requires a 1.5 Ton AC, and rooms larger than 150 sq ft need a 2.0 Ton AC to cool effectively.

Yes. Sleep mode automatically increases the set temperature by 1°C per hour for the first two hours (up to 2°C). This aligns with the natural drop in body temperature and ambient night temperatures, saving up to 10-15% of night power consumption.

Clean your AC's air filters once every 2 weeks. Dust accumulation blocks airflow, forcing the compressor to run longer and drawing 5% to 15% more power. A professional service is recommended twice a year to maintain peak heat exchange efficiency.