Electricity Cost / kWh Calculator
Wattage + hours + rate → running electricity cost.
Project cost for
Cost per month: $30.00
All periods
Day
$1.00
Week
$7.00
Month
$30.00
Year
$365.00
5 kWh/day
What is this tool?
Electricity cost is watts converted to kilowatt-hours (kWh), multiplied by hours used and your per-kWh rate. This tool computes that cost for whatever period you're projecting, and shows day/week/month/year figures side by side so you can see the bigger picture at a glance.
How to use it
- Enter the device's wattage and how many hours per day it runs.
- Enter your electricity rate, in ¢/kWh or $/kWh.
- Pick a period to highlight — day, week, month, or year — and read all four from the breakdown.
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