What Uses the Most Electricity in Your Home?
Every appliance below is ranked by how much it costs you per month. Enter your zip code to see costs at your actual utility rate.
Understanding the Numbers
The cost shown for each appliance assumes typical daily usage. A refrigerator runs 24 hours a day; a hair dryer runs 15 minutes. The ranking reflects what each appliance actually costs you over a month, not just how many watts it draws.
This is why a 1,500-watt space heater running 8 hours/day costs more per month than a 5,000-watt clothes dryer that runs 1 hour/day. Usage hours matter more than wattage.
Want to calculate a specific appliance with custom hours? Use the electricity cost calculator. Want to add up multiple appliances and estimate your total bill? Try the bill estimator.
Frequently Asked Questions
Heating and cooling systems use the most electricity in most homes, accounting for about 46% of the average electric bill. The water heater is typically second, followed by the refrigerator and clothes dryer. The exact ranking depends on your specific appliances, how often you use them, and your local electricity rate. Use the ranker above to see costs at your rate.
No. Cost depends on wattage AND hours of use. A 10-watt LED bulb running 12 hours/day costs more per month than a 1,800-watt hair dryer used for 15 minutes. Appliances that run continuously (refrigerator, router, always-on devices) often cost more than high-wattage appliances used briefly.
Your largest costs are likely from appliances you don't think about: your HVAC system, water heater, and refrigerator. These run automatically and continuously. Together they can account for 60-70% of your bill. See our guide on why your electric bill is so high for a full diagnosis.
Costs assume typical daily usage hours per appliance. Your actual costs depend on how long you run each appliance, your specific model's wattage, and your utility rate. Rate data from the U.S. Energy Information Administration (EIA). See our full disclaimer.