Electricity cost calculator
Calculate kWh usage and daily, monthly, and yearly electricity cost from device wattage, runtime, and your kWh price.
How to use
1. Enter device power in watts.
2. Set hours per day and billing period in days.
3. Enter your electricity price per kWh.
4. Read consumption and cost breakdown.
Example
Electricity cost calculator
Calculate kWh usage and daily, monthly, and yearly electricity cost from device wattage, runtime, and your kWh price.
When to use
• When you need a quick estimate without spreadsheets.
• When you want privacy — calculations stay on your device.