Electricity Usage Calculator – Power Consumption & Cost
Calculate your electricity usage and costs with this free online tool. Estimate power consumption for various appliances based on their power rating, usage time, and your electricity rate.
Common Appliance Power Ratings
- Air Conditioner (HVAC): 2,500-10,000W
- Window AC Unit: 1,500-5,000W
- Home Heater: 5,000-20,000W
- Portable Heater: 750-2,000W
- LED Light Bulb: 3-25W
- Incandescent Bulb: 15-200W
- Refrigerator: 500-1,000W
- Electric Oven: 2,000-5,000W
- Microwave: 750-1,500W
- Washing Machine: 400-1,500W
Energy Saving Tips
- Replace incandescent bulbs with LED bulbs
- Use programmable thermostats
- Unplug devices when not in use
- Maintain proper insulation
- Use energy-efficient appliances
- Optimize heating and cooling settings
Understanding Your Bill
Electricity is typically billed in kilowatt-hours (kWh). One kilowatt-hour is equal to using 1,000 watts for one hour. For example, running a 100-watt light bulb for 10 hours uses 1 kWh of electricity.