AVERAGE WATTAGE REQUIREMENT GUIDE
(AMPS X VOLTS = WATTS)

Household
Running
Wattage
Requirements
Additional
Wattage Required
For Starting

Coffee Maker

1750
0
Dishwasher
Cool Dry
700
1400
Electric Fry Pan 1300
0
Electric Range
8-inch element
2100
0
Microwave Oven 625 watts
625
800
Refrigerator or Freezer
700
2200
Automatic Washer
1150
2300
Clothes Dryer
Electric
5750
1800
Furnace Fan, gas or fuel oil
1/8 Horsepower 300
500
1/6 Horsepower 500
750
1/4 Horsepower 600
1000
1/3 Horsepower 700
1400
1/2 Horsepower 875
2350
Lights as indicated on bulb
0
Radio
50 to 200 0
Sump Pump
1/3 Horsepower 800
1300
1/2 Horsepower 1050
2150
Television - Color 300
0
Central Air Conditioner
10,000 BTU
1500
2200
Contractor
Running
Wattage
Requirements
Additional
Wattage Required
For Starting
Air Compressor
1 Horsepower
1500
4500
Bench Grinder
8 inches
1400
2500
Hand Drill
1/2 inch
600
0
High-pressure Washer
1 Horsepower
1200
3600
Circular Saw, Heavy Duty
71/4 inches
1400
2300
Electric Chain Saw
14 inches, 2 Horsepower
1100
0
Table Saw
10 inches
1800
4500
Drills
3/8 inch 4 amps 440
600
1/2 inch 5.4 amps 600
900
Industrial Motors
Running
Wattage
Requirements
Additional
Wattage Required
For Starting
Split Phase
1/4 Horsepower 600
1000
1/2 Horsepower 875
2300
Capacitor Start Induction Run
1/3 Horsepower 720
1300
1 Horsepower 1600
4500
Capacitor Start Capacitor Run
11/2 Horsepower 2000
6100
Fan Duty
1/4 Horsepower 650
1200
Farm Equipment
Running
Wattage
Requirements
Additional
Wattage Required
For Starting
Electric Fence, 25 miles 250
0
Milk Cooler 1100
1800
Milker (vacuum pump),
2 Horsepower
1000
2300
Portable Heater (kerosene, diesel fuel)
50,000 BTU 400
600
90,000 BTU 500
725
150,000 BTU 625
1000
Battery Charger
15 amp 380 0
60 amp with 250-amp boost
1500/5750 0
100 amp with 300-amp boost
2400/7800
0
Electric Welder
200 amp AC 9000 0
230 amp AC, at 100 amp 7800 0
Air Compressors Running
Wattage
Requirements
Additional
Wattage Required
For Starting
1/2 Horsepower 975 1600
1 Horsepower 1600 4500

Computers
Running
Wattage
Requirements
Additional
Wattage Required
For Starting
Desktop 600 to 800 0
Laptop 200 to 250 0
Monitor 200 to 250 0
Fax 600 to 800 0
Printer 400 to 600 0