Calculator

Electricity cost calculator

Use this calculator to estimate how much an appliance costs to run. Enter the wattage, daily runtime, number of days used per month, and your electricity rate in cents per kilowatt-hour.

Formula

Monthly cost = watts / 1000 x hours per day x days per month x electricity rate.

How to get better results

  • Use the wattage on the appliance label when it is available.
  • Use measured kWh from a plug-in energy meter for appliances that cycle on and off.
  • Use the full delivered rate from your utility bill if you want a bill-level estimate.

Electricity cost calculator

Appliance running cost

$0.00/mo
Daily use 0 kWh
Monthly use 0 kWh
Daily cost $0.00
Yearly cost $0.00

Formula: watts / 1000 x hours used x electricity rate. Real bills can differ because appliances cycle on and off, utility plans vary, and taxes or delivery charges may apply.