How this appliance electricity cost calculator works
Appliance energy use is rated watts ÷ 1,000 × hours used per day. The calculator scales that daily kWh across the selected month and year, then multiplies by your utility rate.
How to use it
- Power draw. Enter the value in W.
- Hours used per day. Enter the value in hours.
- Days used per month. Enter the value in days.
- Electricity rate. Enter the value in $/kWh.
- Request the result. Add your email, then select “Email & show my result.”
What to do with the number
Use measured average wattage when possible. Nameplate wattage can overstate or understate actual consumption when an appliance changes power during operation. A plug-in energy meter is the best way to replace the wattage default for ordinary 120-volt plug-in appliances.
Planning estimate
Use this result as a starting point, not a guarantee. Product specifications, site conditions, manufacturer guidance, local codes, taxes, labor, tolerances, and rounding can change the real requirement or cost.