Electricity Cost Calculator

Multiply the appliance's wattage by the number of hours you use it per day, then divide by 1000 to get daily kilowatt-hours (kWh). Multiply that by your electricity rate (cost per kWh) to find the daily cost. Multiply by 30 for monthly or 365 for yearly estimates.

The average residential electricity rate in the United States is approximately $0.12 per kWh, though rates vary significantly by state. Rates can range from about $0.08/kWh in states like Louisiana to over $0.25/kWh in Hawaii and parts of New England.

Air conditioners (1,000-5,000W), electric water heaters (3,000-4,500W), clothes dryers (2,000-5,000W), and space heaters (1,500W) are among the highest electricity consumers. Refrigerators use about 100-400W but run continuously, adding up over time.

Use energy-efficient appliances (look for ENERGY STAR ratings), switch to LED bulbs, unplug devices when not in use, use a programmable thermostat, and run large appliances during off-peak hours if your utility offers time-of-use rates.