Electricity Cost Calculator
Formula
Cost = (Watts × Hours × Rate) ÷ 1000
Multiply the appliance wattage by hours of use per day, then by your electricity rate per kilowatt-hour (kWh), then divide by 1,000 to convert watts to kilowatts.
Frequently Asked Questions
What is the average electricity rate?
The US average is about $0.12-0.16 per kWh, but varies significantly by state.
How many watts does a typical appliance use?
LED bulb: 10W. TV: 100W. Fridge: 150W. AC unit: 1,000-3,000W. Space heater: 1,500W.