Electricity Cost Calculator

Estimate the electricity cost of an appliance or device from watts, usage time and your electricity rate.

Your numbers

Device power (watts)Hours used per dayDays per monthElectricity rate ($/kWh)

🧠 TUTORCALC EXPLAINS

Understand your result

Watts to cost

Energy in kilowatt-hours equals kilowatts multiplied by hours used. Appliances with thermostats or variable loads may use less than their maximum rated power.