Enter the appliance wattage, hours used per day and your cost per unit. The calculator shows daily, monthly and yearly electricity costs.
Energy in kWh = watts × hours / 1000, then cost = kWh × tariff. A 1000 W device run 3 hours uses 3 kWh; at ₹8 per unit that is ₹24 a day.
A kilowatt-hour is the energy of 1000 watts running for one hour, and it is the unit your electricity provider bills. The tariff is the price per kWh.
Reduce running hours, use lower-wattage or energy-efficient appliances, and target the biggest consumers like heaters, air conditioners and geysers first.
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