Calculate the electricity cost of running your appliances and devices.
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Monthly Cost
Daily Cost-
Yearly Cost-
Daily Consumption (kWh)-
Monthly Consumption (kWh)-
Yearly Consumption (kWh)-
⚙️ How It Works
An electricity cost calculator estimates how much it costs to run an electrical appliance based on its power consumption (watts), usage hours, and your electricity rate (cost per kilowatt-hour). It converts watts to kilowatts, multiplies by hours to get kWh consumed, then multiplies by your rate to get the cost.
A kilowatt-hour is the energy used by a 1,000-watt appliance running for one hour. It's the standard unit for measuring electricity consumption on your utility bill. A 100-watt light bulb running for 10 hours uses 1 kWh.
What is the average electricity rate?
In the US, the average residential electricity rate is about 12–16 cents per kWh, but it varies significantly by state — from about 10 cents in Louisiana to over 30 cents in Hawaii and California. Check your utility bill for your exact rate.
Which appliances use the most electricity?
The biggest electricity consumers are typically: electric water heaters (4,000W), clothes dryers (5,000W), air conditioners (1,000–5,000W), electric ovens (2,000–5,000W), and refrigerators (100–400W running continuously). HVAC systems often account for 40–50% of home energy use.
How can I reduce my electricity bill?
Key strategies: switch to LED bulbs (75% less energy than incandescent), use a programmable thermostat, seal air leaks, run appliances during off-peak hours, unplug devices on standby, and consider energy-efficient appliances (look for ENERGY STAR ratings).