Electricity cost calculator

Electricity bill cost calculation to help you estimate your monthly energy usage cost. To get the energy consumption (kWh), multiply the appliance wattage (W or kW) by the number of hours you use. For example, if you use a 420W television for 7 hours per day, you are using 2940Wh or 2.94kWh per day. In one month the consumption cost will be 2.94kWh x 30 days x 0.20 $/kWh = $17.64.