FREE · CALCULATORS & CONVERTERS
Electricity Cost Calculator.
Estimate kilowatt-hours and energy cost from watts, hours per day, days and a price per kWh.
The currency is a label. Price and the duty cycle are the values you enter. Local arithmetic only. This is a quantity or geometry estimate, not a code check and not a substitute for a licensed professional.
- Energy
- 120 kWh
- Cost
- 24 USD
Energy in kWh is watts / 1000 × hours per day × days. Cost is that energy times the price you enter. The currency is a label.
How to use Electricity Cost Calculator
Enter the device power, how many hours a day it runs, the number of days and your price per kWh.
How it works
Estimate kilowatt-hours and energy cost from watts, hours per day, days and a price per kWh. The currency is a label. Price and the duty cycle are the values you enter. Local arithmetic only. This is a quantity or geometry estimate, not a code check and not a substitute for a licensed professional.
Example
1,000 W for 4 hours a day over 30 days.
Questions about Electricity Cost Calculator
Is Electricity Cost Calculator free, and do I need an account?
Yes. This tool is free to use in your browser without an account. Processing takes place on your device.
What are the limits and what should I check?
The currency is a label. Price and the duty cycle are the values you enter. Local arithmetic only. This is a quantity or geometry estimate, not a code check and not a substitute for a licensed professional. Review the result before using it in your work.
Is my input sent to a server?
Your input is processed in your browser and is not uploaded by this tool. Files and pasted text are cleared when the page is refreshed. Normal website requests are still required to load the page and its libraries. Read the privacy explanation.