Electricity Cost Calculator

Estimate your power bill from device wattage, daily usage hours, and electricity rate

Cost = (Watts/1000) × Hours × Rate
kWh / day
0.80
Cost / day
$0.10
kWh / month
24.00
Cost / month
$2.88
kWh / year
292.00
Cost / year
$35.04
$0.10Cost / day$2.88Cost / month$35.04Cost / year24.00 kWh/mo

About this calculator

Estimate electricity cost for any appliance. Enter wattage, daily usage hours, and your electricity rate to see daily, monthly, and yearly energy consumption and cost. Great for budgeting and comparing appliance efficiency.

Common examples

  • 100W light bulb, 8 hrs/day, $0.12/kWh → $2.88/month
  • 1500W space heater, 6 hrs/day → $8.10/month at $0.12/kWh
  • 60W laptop, 10 hrs/day → $2.16/month at $0.12/kWh
  • 200W TV, 5 hrs/day → $3.60/month at $0.12/kWh
  • 2000W oven, 1 hr/day → $7.20/month at $0.12/kWh