Home / Office UPS Wattage Calculator

Online electrical energy calculator that allows you to estimate your home or office backup power supply requirements. The resulted total watts can be used to decide the type of generator or UPS battery you require to meet the shortage of electricity.

UPS Wattage / Power Supply Backup Calculation

Appliances Quantity Wattage Total
 
Television (color)
  20-inch (LCD) 65
  26-inch (LCD) 110
  36 to 42 - inch (Plasma) 250
  50 to 60 - inch (Plasma) 340
Fans
  Ceiling 120
  Window 150
  Furnace 750
  Whole house 500
Air conditioner
  Central 5000
  Room 1000
Clock radio 10
Coffeemaker 1050
Clothes washer 425
Clothes dryer 3400
Dishwasher 1800
Dehumidifier 785
Electric blanket 80
Freezer (stand-alone) 600
Hair dryer 1600
Heating
  central, gas furnace 400
  central, oil furnace 1500
  electric, portable 1125
  Clothes iron 1400
Light bulb
  Incandescent 100
  Compact fluorescent 25
  Microwave oven 925
Personal computer
  CPU & Monitor 125
  Laptop 25
Stereo 250
Range (electric) 4500
Refrigerator 725
Sump pump 600
Toaster 1100
Toaster oven 1225
VCR/DVD 25
Vacuum cleaner 1225
Water heater (electric, 40-gallon) 5000
Well pump (deep well) 700
 
Total Wattage
 
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Estimate your backup UPS requirements for home or office with this simple online power supply wattage calculator.

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