Electricity bill per device, day, month and year from watts and hours.
Managing your household budget starts with understanding how much energy your appliances consume. Our free online electricity cost calculator helps you determine exactly how much your electronics and household devices add to your utility bill. Whether you are curious about a specific device or trying to lower your overall monthly expenses, this tool gives you instant clarity without any complicated math.
Electricity rates and appliance power ratings can be confusing. Many homeowners are surprised to learn which devices are the biggest energy hogs. By using an electricity cost calculator, you can:
Calculating your power expenses is fast and straightforward. Follow these simple steps to get your results:
What is a kilowatt-hour (kWh)?
A kilowatt-hour is a standard unit of energy measurement equal to using 1,000 watts of power for one full hour. Your utility company charges you based on how many kWh you consume during the billing cycle.
How can I find my appliance wattage?
Most electronics feature a rating label on the back or bottom showing the wattage (W) or amperage and voltage. If you only have amps and volts, simply multiply them together to get the total wattage.
Is this utility tool completely free?
Yes! Just like our suite of PDF, image, and text utilities, this electricity cost calculator is 100% free to use with no hidden fees or registration required.