electricityClassic tool
Electricity Consumption Calculator
Estimate kWh usage and cost from wattage, time and local tariff.
This calculator turns wattage and usage time into estimated electricity consumption and cost. Enter the device power, hours of use and the energy tariff to see the daily and period impact in both kWh and money.
It is useful for comparing appliances, checking habits, planning future bills and spotting devices that may be costing more than expected.
Use clear inputs to get a more useful result.