TYPICAL WATTAGES of VARIOUS APPLIANCES

Below are some examples for wattage for various household appliances:

  • Clock radio = 10 watts
  • Coffee maker = 900-1200 watts
  • Clothes washer = 350-500 watts
  • Clothes dryer = 1800-5000 watts
  • Dishwasher = 1200-2400 watts (using the drying feature greatly increases energy consumption)
  • Dehumidifier = 785 watts
  • Fans
    • Ceiling = 65-175 watts
    • Window = 55-250 watts
  • Hair Dryer = 1200-1875 watts
  • Heater (portable) = 750-1500 watts
  • Microwave oven = 750-1100 watts
  • Personal computer
    • CPU - awake/asleep = 120/30 watts or less
    • Monitor - awake/asleep = 150/30 watts or less
    • Laptop = 50 watts
  • Radio (stereo) = 70-400 watts
  • Refrigerator (frost-free, 16 cubic ft) = 725 watts
  • Televisions (color)
    • 19" = 65-110 watts
    • 27" = 113 watts
    • 36" = 133 watts
    • 53-61" Projection = 170 watts
    • Flat screen = 120 watts
  • Toaster = 800-1400 watts
  • Toaster oven = 1225 watts
  • VCR/DVD = 17-21 watts/20-25 watts
  • Vacuum cleaner = 1000-1440 watts
  • Water heater (40 gal) = 4500-5500 watts
  • Water pump (deep well) = 250-1100 watts
Formula for Estimating Energy Consumption
 
Use this formula to estimate an appliance's annual energy use and annual cost:
 
(Wattage x Hours Used Per day x # Days Per Year) / 1000W = Annual Use Kilowatt Hours (kWh)
 
Annual Use (kWh) x Local Utility Rate Per kWh Consumed (eg: 11.79¢) = Annual $/year
 
Example: Window fan
 
(200 Watts x 4 hours/day x 120 days/year) / 1000 = 96 kWh
 
96 kWh x 11.79¢ = $11.32 per year

Source:U.S. Department of Energy http://www.eere.energy.gov/consumer/your_home/appliances/index.cfm