Electricity Cost Calculator | kWh and Appliance Cost
Calculate daily, monthly, and yearly electricity cost from appliance wattage, quantity, usage hours, billing days, and price per kWh.
Electricity Cost Estimate
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Calculate Appliance Electricity Cost
Enter wattage, number of devices, daily usage hours, billing days, and price per kWh to estimate energy use and electricity cost.
Wattage and Usage Time Matter Most
Small devices can become expensive when used for many hours. Check the appliance label, smart plug data, or real meter readings for better estimates.
About This Tool
Electricity Cost Calculator estimates the running cost of any appliance based on wattage, daily usage hours, and the electricity price per kilowatt-hour. It helps identify high-consumption devices and calculate monthly energy bills.
When to Use It
Use this when comparing the running cost of two appliances before buying, when calculating how much a device adds to the electricity bill, or when identifying which devices contribute most to a high bill.
How to Use
- Enter the device wattage from its label or specification.
- Enter the average daily usage hours.
- Enter the electricity price per kWh from your bill.
- Click Calculate to see daily, monthly, and annual costs.
Frequently Asked Questions
How do I find the wattage of an appliance?
Check the label on the back or bottom of the device. If it shows amps and volts, multiply them to get watts.
What is a typical electricity price?
Prices vary by country and supplier. Check the unit rate on your electricity bill for an accurate figure to enter into the calculator.
Which devices use the most electricity?
Heating, air conditioning, tumble dryers, electric ovens, and EV chargers are typically the highest consumers. Standby power from many devices also adds up over time.