How to use it
- Enter the rated power and choose watts or kilowatts.
- Enter average daily runtime, price per kWh and number of days.
- Calculate energy use and cost.
Appliance Energy Use Calculator
Estimate daily, selected-period and yearly electricity use for one appliance.
About the Appliance Energy Use Calculator
Translate an appliance power rating and runtime into comparable kWh and cost estimates.
Formula
Daily kWh equals power in kilowatts times hours per day. Period energy multiplies daily kWh by days.
Example
A 1,000 W appliance used four hours daily consumes an estimated 4 kWh per day.
Notes
Rated power may differ from actual average draw because appliances can cycle, idle or change operating modes.