How do you estimate appliance electricity cost?
The calculator multiplies watts by hours used, divides by 1,000 to get kWh, then multiplies kWh by your electricity rate.
Choose a common appliance or enter your own wattage, usage hours, billing days, and rate to estimate daily, monthly, and yearly cost.
Electric bill
$226
All-in rate
$0.246 per kWh
Best next check
Cooling hours
Adjust the assumptions.
Large cooling loads can dominate summer bills.
Estimated usage
420 kWh
Total electricity for the selected billing period.
Estimated cost
$71.40
Usage multiplied by your electricity rate.
Daily cost
$2.38
A quick view of how each day contributes.
Yearly pace
$869
Projected annual cost if the habit stays the same.
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Open pageUseful checks
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Short answers for search visitors and bill-checking moments.
The calculator multiplies watts by hours used, divides by 1,000 to get kWh, then multiplies kWh by your electricity rate.
Real costs vary by appliance efficiency, thermostat settings, age, weather, maintenance, and how often the device cycles on and off.
Yes. The preset appliances are starting points, but entering the wattage printed on your device or measured with a power meter gives a better estimate.