Work = Force x Distance

Calorie - equals the amount of heat required to raise 1 gram of pure water from 14.5 to 15.5� Celsius at standard atmospheric pressure
 
1 calorie is equal to 4.1855 joules
 
One joule of work per second is equal to one watt.
 
1000 watts. is the same as 1 kilowatt (kW)
 
745.699 watts is equals to One horsepower 
 
 
 horsepower.gif (2557 bytes)       

If you have a 100-watt light and you leave it on for 10 hours, the light will consume 1 kilowatt-hour (100 watts * 10 hours = 1 kilowatt-hour).

If you have a 20,000-watt heat pump and you leave it on for five hours every day, you will consume 100 kilowatt-hours per day (20 kilowatts * 5 hours = 100 kilowatt-hours), or 10 dollars of power per day if a kilowatt-hour costs a dime. If you do that for a month, your heat pump costs you (30 * $10) $300 per month. That is why your electric bills can get so high when the temperature is very cold -- the heat pump runs a lot.

... so 120 volts * 10 amps = 1,200 watts

Wattage Values
 
 
APPLIANCE  APPROXIMATE AVERAGE WATTAGE
Air cleaner (room & furnace)  40
Barbecue Grill 1350
Air Conditioner (Room) 6,000 btu 750
                                               9,000 btu 1050
                              (Central) 2.5 Tons 3500
Block Heater 500
Broiler 1400
Car Interior Heater 850
Ceiling Fan 60
Clock 5
Clothes Dryer 5000
Clothes Washer,Automatic
(With electric Water heating) 500
(With Non-electric water heating) 500
Coffee Maker 900
Computer (Monitor & Printer) 200
Deep Fat Fryer 1500
Dehumidifier 350
Dishwasher
(with electric water heating) 1300
(with non-electric water heating) 1300
Drill 300
Electric Blanket 180
Electric Heater (portable) 1000
Fan (portable) 115
Food Blender 390
Food Freezer (15 cu.ft.) 335
Food Mixer (Hand & Table) 100
Frying Pan 1150
Furnace Fan Motor (Intermittent) 350
                                      (Continuous) 350
Hair Dryer (Portable) 1000
Heat Exchange/HRV's 125
Heat Lamp (Infrared) 250
Heating Pad 65
Hedge Trimmer 125
Hot Plate 1320
Humidifier (Portable) 100
Iron (Hand) 1000
Kettle 1500
Lawn Mower 1500
Lighting Single lamp (60w) 60
Compact Fluorescent (60w equiv) 18
Ceiling Fixture (3 Bulbs) 180
Tri-light (Table Lamp) 100
Chandelier (5 Lamp) 300
Fluorescent (2 Tube 4 ft.) 100
Microwave Oven 1000
Oil Furnace  (Burner) 260
Power Saw 275
Range 12500
  (Self Cleaning Cycle Only) 3200
Refrigerator-Freezer Frost Free
   (17 cu.ft.) 500
   Non-Frost Free (13 cu.ft.) 300
Sewing Machine 75
Stereo 30
Sun Lamp 280
Swimming Pool Filter Motor 1/2hp 900
                                          3/4 hp 1200
                                          1.5 hp 2100
Television 80
Toaster 1150
Toaster Oven 1250
Vacuum Cleaner (Portable) 800
                                 (Central) 1600
VCR 40
Water Bed Heater 400
Water Heater Typical Family of 4 3800
                           Typical Family of 2 3800
Bathroom Appliances
Appliance Approx. wattage
Blow dryer 1200
Curling iron 40
Hot rollers 375
Shaver 10
Laundry Room Appliances
Appliance Approx. wattage
Clothes dryer 4800
*Iron 1200
Washing machine 640
Kitchen Appliances
Appliance Approx. wattage
Blender 385
Breadmaker 430
Can opener 125
Coffee maker
(10-cup auto
drip type)		 850 - 1500
Crockpot 200
Dishwasher
   Washing
   Drying
   Heating
200
1000
800
*Freezer - old model (17 cu.ft. manual defrost) 350
*Freezer - new model (17 cu.ft. frost-free) 440
Frying pan 1250
Garbage disposal 445
Microwave oven 1500
Mixer 125
Oven - conventional 3500
Range - average large element 2100
Range - average small element 1600
*Refrigerator-freezer - old model 20 cu.ft, frost-free 615
*Refrigerator-freezer - new 25 cu.ft, side-by-side, ice and water 1270
Toaster - 2-4 slice 700 - 1500
*Toaster oven 1150
Trash compactor 460
*Waffle iron 800
BASIC APPLIANCES WATTAGE
DESK FAN (16") 80
FLAT IRON 600
INCANDESCENT BULB 50
TV SET (b/w) 40
APPLIANCES WATTAGE
AIR CONDITIONING UNIT
    (1.0 HP)
    (1.5 HP)
    (2.0 HP)
1420
2250
3358
AIR COOLER/
HUMIDIFIER		 65
AIRPOT 600
BLENDER 300
BREAD TOASTER
    (2-way)
    (4-way)
800
1500
CLOCK, DESK or WALL 2
CLOTHES DRYER
    heater
    spin motor
1600
250
COFFEE MAKER 600
COMPUTER (with monitor) 225
COMPUTER PRINTER 175
COOKER, RICE
    (3.0 L)
    (1.8 L)
    (1.0 L)
1000
650
450
COOKER, SLOW
    (3.0 L)
    (2.0 L)
    (1.0 L)
1000
650
450
EMERGENCY/ LIGHTS (during recharging) 12
FAMILY COMPUTER 10
FAN, BOX (big) 90
FAN, CEILING
    (2-blader)
    (3-blader)
    (4-blader)
100
140
160
FAN, DESK
    (8")
    (10")
    (12")
    (14")
    (16")
    (18")
    (20")
30
40
50
60
80
120
175
FAN, EXHAUST 92
FAN, STAND (16") 80
FLAT IRON
    (standard)
    (deluxe)
600
1000
FLOOR POLISHER
    (standard)
    (deluxe)
200
360
FLUORESCENT LAMP
    48" (40w lamp with ballast)
    21" (20w lamp with ballast)
53
32
FOOD PROCESSOR 700
*FREEZER, CHEST
    (8 cu. ft.)
    (10 cu. ft.)
    (12 cu. ft.)
160
180
200
*FREEZER, UPRIGHT (8 cu. ft.) 150
FRYER 680
GRILLER 1200
HAIR DRYER 320
INCANDESCENT BULB
    (25-watt)
    (50-watt)
    (100-watt)
25
50
100
MEAT CHOPPER 700
OSTERIZER 300
OVEN, MICROWAVE 1000
OVEN, MINI 1500
OVEN, PIZZA
    (small)
    (big)
2000
3600
OVEN, TOASTER 750
POPCORN POPPER 1200
RANGE
    (2-burner)
    (4-burner)
3300
8200
*REFRIGERATOR
    (6 cu. ft.)
    (7 cu. ft.)
    (8 cu. ft.)
    (9 cu. ft.)
    (10 cu. ft.)
    (11 cu. ft.)
    (frost-free, 7 cu. ft.)
    (frost-free, 8 cu. ft.)
    (frost-free, 9 cu. ft.)
    (frost-free, 10 cu. ft.)
    (frost-free, 11 cu. ft.)
    (frost-free, 19 cu. ft.)
100
120
130
140
155
170
220
250
280
300
320
800
SEWING MACHINE 75
STEREO
    (solid state)
    (component system)
    (component with cd player)
    (mini-component)
160
380
400
145
STOVE
    (6" coil hot plate)
    (8" coil hot plate)
1500
2200
TAPE RECORDER
    (cassette)
    (reel)
50
150
TURBO BROILER 1000
TV SET
    (b/w 12")
    (b/w 14")
    (b/w 16")
    (b/w 20")
    (color 12")
    (color 14")
    (color 16")
    (color 18")
    (color 20")
    (color 26")
32
36
40
55
65
80
85
90
110
130
VACUUM CLEANER 800
VHS 45
VIDEO TAPE RECORDER 30
VIDEO TAPE PLAYER 18
VIDEO TAPE REWINDER 30
WASHING MACHINE
    (non-automatic)
    (automatic)
280
585
WATER HEATER
    (installed)
    (instant, portable)
3000
1600
WATER PUMP (automatic 1/2 hp) 373
 
Appliances Average
Wattage
Comfort/Conditioning
Air Cleaner 50
Air Conditioner* 860
Air Conditioner* 3,750
Blanket 177
Dehumidifier 257
Fan, Attic 370
Fan, Circulating 88
Fan, Rollaway 171
Fan, Window 200
Heat Lamp (infrared) 250
Heating Pad 65
Humidifier 177
Space Heater--portable 1,322
Lighting Fixtures (when figuring, do each light fixture separately--then add together. Lighting is said to account for one-fifth to one-fourth of the average electric bill. 40 to 300
Food Preparation
Blender 386
Broiler 1,436
Coffee Maker 894
Deep Fryer 1,448
Dishwasher 1,201
Disposer, waste-garbage 445
Egg Cooker 516
Fry pan** 1,196
Knife, Slicing 92
Microwave Oven 1,450
Mixer 127
Range with oven 12,200
Range with self-cleaning oven 12,200
6" unit, high setting*** 1,400
8" unit, high setting*** 2,600
Oven built-in 6,000
Roaster 1,333
Sandwich Grill 1,161
Toaster 1,146
Waffle Iron 1,116
Food Preservation
Freezer
---15 cu ft upright 341
---15 cu ft upright frostless 440
Refrigerator
---12 cu ft 241
---12 cu ft frostless 321
Refrigerator-freezer
---14 cu ft 326
---14 cu ft frostless 615
Health and Beauty
Curling Iron 40
Hair Dryer 750
Shaver 14
Sunlamp 279
Tooth brush 7
Vibrator 40
Home Entertainment
Radio 71
Radio-Record Player 109
Television
---Black-White
-----Tube 160
-----Solid State 55
---Color
-----Tube 300
-----Solid State 200
Housewares
Clock 2
Floor Polisher 305
Garage Door Opener 350
Garden tools
---edger 190
---hedge trimmer 265
Hot plate 1,257
Sewing Machine 75
Trash Compactor 1,380
Vacuum Cleaner 630
Laundry
Clothes Dryer 4,856
Iron (hand) 1,008
Washing machine (automatic)
(2500 KWH/year including energy used to heat water)		 512
Washing machine (non-automatic)
(2497 KWH/year including energy used to heat water)		 286
Water Heater 4,474
Watts Required
Motor, hp To start To run
1/6
1/4
1/3
1/2
1
5
7.5
10

 1,000
1.500
2,000
2,300
4,ooo
18,000
28,000
36,000

 215
300
400
575
1,000
4,500
7,000
9,000
Typical Equipment Wattages
Essential home equipment Typical wattage
Refrigerator
Freezer
Furnace blower
 400-800
600-1,000
400-600
Optional home equipment Typical wattage
Electric skillet
Electric stove
Washing machine
Water pump
Water heater
Electric fan
Central air conditioner
 1,150-1,500
3,000-4,000
400
800-2,500
1,000-5,000
75-300
2,000-5,000
Farm equipment Typical wattage
Ventilator fans
Silo unloader
Feed mixing
Feed conveyor
Bulk milk cooler
Electric fence
 300-800
2,000-7,500
800-1,500
800-5,000
1,500-12,000
7-10
Application / Equipment Running/Rated 
Watts		 Starting/Surge 
Watts
Light Bulb (100w) 100 100
Radio AM/FM 50-200 50-200
Radio, CB 50 50
Fan 200 600
Television 300-400 300-400
Microwave Oven 700 1000
Air Conditioner (12,000 BTU) 3250 5000
Furnace Fan (1/3 hp blower motor) 600 1800
Vacuum cleaner 600 750
Sump pump (1/3 hp) 700 2100
Refrigerator/freezer 800 2400
Deep Freezer 500 1500
Circular saw 1000-2500 2300-4600
Circular saw 6" 800 1000
Floodlight 1000 1000
Drill 1/2" Electric 1000 1250
Toaster 1200 1200
Coffee maker 1200 1200
Skillet 1200 1200
Chain saw 14" Electric 1200 1500
Water well pump (1/2 hp) 1000 3000
Hot plate/range (per burner) 1500 1500
Table saw 10" 2000 6000
Water heater (storage type) 5000 5000
12V DC Battery Charger 120 120
 
Electric Motor 
HP 
Rating		 Approximate
Running
Watts		 Universal 
Motors 
(small appliances)		 Repulsion 
Induction 
Motors		 Capacitor 
Motors		 Split 
Phase 
Motor
1/8 275 400 600 850 1200
1/4 400 500 850 1050 1700
1/3 450 600 975 1350 1950
1/2 600 750 1300 1800 2600
3/4 850 1000 1900 2600 x
1 1000 1250 2300 3000 x
1-1/2 1600 1750 3200 4200 x
2 2000 2350 3900 5100 x
3 3000 x 5200 6800 x
Tool Power Required
Air Compressors, 1/2 HP 1500 - 3000W
Circular Saw, 7 1/4" 1000 - 2500W
Electric Chain Saw, 14" 800 - 1500W
Electric Drill, 1/4" and 3/8" 300 - 600W
Electric Drill, 1/2" 350 - 1200W
Grinders, 6" 1000 - 2600W
Jig Saw 200 - 800W
Paint Sprayer 800 - 1300W
Portable Oil Heater 900 - 1000W
Router 900 - 1000W
Sander, 4" Belt 700 - 1500W
Soldering Iron 100 - 300W
10 Amp Battery Charger 300 - 400W
Electric Motors* Power Required
1/6 HP, 460 Watt 340 - 850W
1/4 HP, 725 Watt 450 - 1050W
1/3 HP, 800 Watt 560 - 1300W
1/2 HP, 970 Watt 760 - 1800W
3/4 HP, 1340 Watt 1080 - 2600W
1 HP, 1700 Watt 1250 - 3000W
1 1/2 HP, 2300 Watt 1600 - 4200W
Household Uses Power Required
Air Conditioner 10,000 BTU 2000 - 3000W
Coffee Pot 1000 - 1500W
Electric Heater 1000 - 2000W
Electric Stove (one element) 750 - 1800W
Gas Furnace 300 - 1500W
Hair Dryer 800 - 1500W
Iron 1000 - 1500W
Microwave 500 - 1500W
Oil Furnace 400 - 2000W
Radio 30 - 100W
Refrigerator/Freezer 600 - 2500W
Sump Pump 800 - 3000W
Television 100 - 350W
Toaster 1100 - 1700W
Water Pump 1000 - 3000W
Equipment Wattage Equipment Wattage
Blower, Electric 1/2 to 3 hp. Impact Wrenches 1" 1200
Concrete Vibrators 3/4 hp. 840 Heaters, Space 1/4 to 2 hp.
Concrete Vibrators 1 hp. 1080 Pumps, Electric 1/2 hp. & up
Concrete Vibrators 2 hp. 1560 Routers 900-1000
Concrete Vibrators 3 hp. 2400 Saws, Chain 800-1500
Compressors 1/4 to 3 hp. Saws, Circular 6" 1000-2500
Drain Cleaners `1 250 Saws, Cutoff 2500
Drills 1/4" 250-600 Saws, Jig 200-800
Drills 3/8" 300-600 Saws, Masonry 2 to 5 hp.
Drills 1/2" 350-1200 Saws, Table 1 to 3 hp.
Drills 1' 1000 Saws, Radial Arm 1 to 5 hp.
Grinders, Bench 1/4 to 1 hp. Screw Drivers 550
Grinders, Portable 1000-2500 Shears, Metal-Cutting 750
Hammers, Demolition 1260 Sanders, Belt 600-1500
Hammers, Rotary 1200 Sanders, Disc. 1200
Impact Wrenches 1/2" 600 Sanders, Orbital 250
Impact Wrenches 3/4" 720 Lights Check wattage on bulb
 
Household Items Running
Watts		 Starting
Watts
Coffee Maker 1750 0
Dishwasher Cool Dry 700 1400
Hot Dry 1450 1400
Electric Fry Pan 1300 0
Electric Range 6-inch element 1500 0
8-inch element 2100 0
Microwave Oven 625 watts 625 800
Refrigerator or Freezer 700 2200
Toaster 2-slice 1050 0
4-slice 1650 0
Automatic Washer 1150 2300
Clothes Dryer Gas 700 1800
Electric 5750 1800
Dehumidifier 650 800
Electric Blanket 400 0
Garage Door Opener 1/4 HP 300 1000
1/3 HP 725 1400
Furnace Fan, gas or fuel 1/8 HP 300 500
1/6 HP 500 750
1/4 HP 600 1000
1/3 HP 700 1400
1/2 HP 875 2350
Hair Dryers 300 to 1200 0
Iron 1200 0
Lights as indicated on bulb 0
Radio 50 to 200 0
Well Pump 1/3 HP 750 1400
1/2 HP 1000 2100
Sump Pump 1/3 HP 800 1300
1/2 HP 1050 2150
Television Color 300 0
Black and White 100 0
Vacuum Cleaner Standard 800 0
Deluxe 1100 0
Central Air Conditioner 10,000 BTU 1500 2200
20,000 BTU 2500 3300
24,000 BTU 3800 4950
32,000 BTU 5000 6500
40,000 BTU 6000 7800
Contractor Needs Running
Watts		 Starting
Watts
Air Compressor 1/2 HP 1000 2000
1 HP 1500 4500
1 1/2 HP 2200 6000
2 HP 2800 7700
Bench Grinder 6 inches 720 1000
8 inches 1400 2500
10 inches 1600 3600
Electric Cultivator 1/3 HP 7000 1400
Electric Hedge Trimmer 18 inches 400 0
Electric Line Trimmer Standard, 9 inches 350 0
Heavy-duty, 12 inches 500 0
Drum Mixer, 55 gallons 1/4 HP 700 1200
Flood Lights HID, Metal Halide, Mercury Vapor or Sodium Vapor (Watts per bulb) 250 63
400 100
1000 250
Floor Polisher 16 inches, 3/4 HP 1400 3100
20 inches, 1 HP 1600 4500
Hand Drill 1/4 inch 350 0
3/8 inch 400 0
1/2 inch 600 0
High-pressure Washer 5/8 HP 900 2700
1 HP 1200 3600
1 1/2 HP 1450 4300
3 HP 3125 9300
Submersible Pump 400 gph 200 400
Centrifugal Type 900 gph 500 400
Wet and Dry Vac 1.7 HP 900 0
2 1/2 HP 1300 0
Skill Saws, Worm Drive 7 1/4 inches 1800 2600
Band Saw 14 inch 1100 1400
Circular Saw, Heavy-duty 6 1/2 inches 800 1200
7 1/4 inches 1400 2300
8 1/4 inches 1800 3000
Electric Chainsaw 12 inches, 1/2 HP 900 0
14 inches, 2 HP 1100 0
Table Saws 9 inches 1500 3000
10 inches 1800 4500
Miter Saw 10 amp 1100 2000
15 amp 1650 3000
Sawzall 750 1400
Drills 1/4 inch 3 amps 300 400
3/8 inch 4 amps 440 600
1/2 inch 5.4 amps 600 900
Motors in General Running
Watts		 Starting
Watts
Split Phase 1/8 HP 300 500
1/6 HP 500 725
1/4 HP 600 1000
1/3 HP 700 1400
1/2 HP 875 2300
Capacitor Start Induction Run 1/3 HP 720 1300
1/2 HP 975 2100
3/4 HP 1400 3100
1 HP 1600 4500
1 1/2 HP 2200 6000
2 HP 2850 7700
3 HP 3900 12,000
5 HP 6800 16,500
Fan Duty 1/8 HP 400 600
1/6 HP 550 850
1/4 HP 650 1200
1/3 HP 800 1600
1/2 HP 1100 2400
Household Running
Wattage
Requirements		 Starting
Wattage
Requirements

Coffee Maker

 1750 0

Dishwasher

    Cool Dry

 700 1400

    Hot Dry

 1450 1400

Electric Fry Pan

 1300 0

Electric Range

    6-inch element

 1500 0

    8-inch element

2100 0

Microwave Oven

    625 watts

 625 800

Refrigerator or Freezer

 700 2200

Toaster

    2-slice

 1050 0

    4-slice

 1650 0

Automatic Washer

 1150 2300

Clothes Dryer

    Gas

 700 1800

    Electric

 5750 1800

Dehumidifier

 650 800

Electric Blanket

 400 0

Garage Door Opener

    1/4 Horsepower

 550 1100

    1/3 Horsepower

 725 1400

Furnace Fan, gas or fuel

    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

Hair Dryers

 300 to 1200 0

Iron

 1200 0

Lights

 as indicated on bulb 0

Radio

 50 to 200 0

Well Pump

    1/3 Horsepower

 750 1400

    1/2 Horsepower

 1000 2100

Sump Pump

     1/3 Horsepower

 800 1300

     1/2 Horsepower

 1050 2150

Television

    Color

 300 0

    Black and White

 100 0

Vacuum Cleaner

    Standard

 800 0

    Deluxe

 1100 0

Central Air Conditioner

    10,000 BTU

 1500 2200

    20,000 BTU

 2500 3300

    24,000 BTU

 3800 4950

    32,000 BTU

 5000 6500

    40,000 BTU

 6000 7800

Contractor

 Running
Wattage
Requirements		 Starting
Wattage
Requirements

Air Compressor

    1/2 Horsepower

 1000 2000

    1 Horsepower

 1500 4500

    1 1/2 Horsepower

 2200 6000

    2 Horsepower

 2800 7700

Bench Grinder

    6 inches

 720 1000

    8 inches

 1400 2500

    10 inches

 1600 3600

Electric Cultivator

    1/3 Horsepower

 7000 1400

Electric Hedge Trimmer

    18 inches

 400 0

Electric Line Trimmer

    Standard, 9 inches

 350 0

    Heavy-duty, 12 inches

 500 0

Drum Mixer, 55 gallons

    1/4 Horsepower

 700 1200

Flood Lights

    (HID, Metal Halide, Mercury       Vapor or Sodium Vapor

 250 63

    Watts per Bulb 

400 100
1000 250

Floor Polisher

    16 inches, 3/4 Horsepower

 1400 3100

    20 inches, 1 Horsepower

 1600 4500

Hand Drill

    1/4 inch

 350 0

    3/8 inch

 400 0

    1/2 inch

 600 0

High-pressure Washer

    5/8 Horsepower

 900 2700

    1 Horsepower

 1200 3600

    1 1/2 Horsepower

 1450 4300

    3 Horsepower

 3125 9300

Submersible Pump, 400 gph

 200 400

    Centrifugal Type, 900 gph

 500 400

Wet and Dry Vac

    1.7 Horsepower

 900 0

    2 1/2 Horsepower

 1300 0

Saws:

    Worm Drive, 7 1/4 inches
    (Skill Saw)

 1800 2600

    Band Saw, 14 inches

 1100 1400

Circular Saw, Heavy-duty

    6 1/2 inches

 800 1200

    7 1/4 inches

 1400 2300

    8 1/4 inches

 1800 3000

Electric Chainsaw

    12 inches, 1/2 Horsepower

 900 0

    14 inches, 2 Horsepower

 1100 0

Table Saws

    9 inches

 1500 3000

    10 inches

 1800 4500

    Miter Saw 10 amp

 1100 2000

    Miter Saw 15 amp

 1650 3000

    Heavy-duty Sawzall

 750 1400

Drills

    1/4 inch 3 amps

 300 400

    3/8 inch 4 amps

 440 600

    1/2 inch 5.4 amps

 600 900
Industrial Motors Running
Wattage
Requirements		 Starting
Wattage
Requirements

Split Phase

    1/8 Horsepower

 300 500

    1/6 Horsepower

 500 725

    1/4 Horsepower

 600 1000

    1/3 Horsepower

 700 1400

    1/2 Horsepower

 875 2300

Capacitor Start Induction Run

    1/3 Horsepower

 720 1300

    1/2 Horsepower

 975 2100

    3/4 Horsepower

 1400 3100

    1 Horsepower

 1600 4500

    1 1/2 Horsepower

 2200 6000

    2 Horsepower

 2850 7700

    3 Horsepower

 3900 12,000

    5 Horsepower

 6800 16,500

Fan Duty

    1/8 Horsepower

 400 600

    1/8 Horsepower

 550 850

    1/8 Horsepower

 650 1200

    1/8 Horsepower

 800 1600

    1/8 Horsepower

 1100 2400
APPLICATION/EQUIPMENT RUNNING RATED WATTS STARTING/SURGE
Light Bulb (100 watt) 100 100
Radio AM/FM Stereo 50-200 50-200
Radio CB 50 50
Portable Fan 200 600
Television 300-400 300-400
Microwave Oven 700 1000
Air Conditioner 3250 5000
Furnace Fan (1/3 HP Blower) 600 1800
Vacuum Cleaner 600 750
Sump Pump (1/3 HP) 700 2100
Refigerator / Freezer 800 2400
Freezer 500 1500
Circular Saw 6" 800 1000
Floodlight 1000 1000
Drill - 1/2" Electric 1000 1250
Toaster 1200 1200
Coffee Maker 1200 1200
Skillet 1200 1200
Chain Saw 14" Electric 1200 1500
Water Well Pump (1/2 HP) 1000 3000
Hot Plate / Range Per Burner 1500 1500
Table Saw 10" 2000 6000
Water Heater (Storage Type) 5000 5000
12 V DC Battery Charger 120 120
Motor Rating HP Approximate
Running Watts		 Universal Motors
Small Appliance		 Reduction
Induction motors		 Capacitor Motors Split Phase Motors
1/8 275 400 600 850 1200
1/4 400 500 850 1050 1700
1/3 450 600 975 1350 1950
1/2 600 750 1300 1800 2600
3/4 850 1000 1900 2600 **
1 1000 1250 2300 3000 **
1 1/2 1600 1750 3200 4200 **
2 2000 2350 3900 5100 **
3 3000 ** 5200 6800 **
** Motors of higher horsepower are not generally used.
Water Well Pump HP Rating Externally Regulated Generator Internally Regulated Generator
Min. KW Min. KVA Min. KW Min. KVA
1/3 1.5 1.9 1.2 1.5
1/2 2.0 2.5 1.5 1.9
3/4 3.0 3.8 2.0 2.5
1 4.0 5.0 2.5 3.125
1 1/2 5.0 6.25 3.0 3.8
2 7.5 9.4 4.0 5.0
3 10.0 12.5 5.0 6.25
5 15.0 18.75 7.5 9.4
7 1/2 20.0 25.0 10.5 12.5
10 30.0 37.5 15.0 18.8
 
COMMON APPLIANCES AVERAGE WATTAGE
Air Conditioner(room) 1000(varies)
Air Conditioner (central) 2500-3500(varies)
Attic FanElectric Blanket 370200
Car Enging Heaters 1000
Ceiling Fan varies
Clock 4
Clothes Dryer 4350
Coffee Maker 850
Computer 360
Dehumidifier (9kWh per all-day) 300
Dishwasher 1190
Electronic Filter 50
Freezer, Standard(12-15 cu ft) 350
Freezer, Frost-free(12-15 cu ft 440
Food Mixer/Blender 110
Frying Pan 1200
Furnace, Oil/Gas(cold Mo) 600
Garbage Disposal 400
Heater, Portable 1500
Hair Dryer 1250
Humidifier 80
Iron (hand) 1100
Lighting(varies widely) 1600-4000
Microwave 1450
Oscillating Fan 88
Radio 70
Radio-Stereo 110
Range 12000
Refrigerator, standard(12'-16') 265
Refrigerator,frost-free(16') 475
Refrigerator, frost-free(20') 540
Sewing Machine 75
Spa/Hot Tub varies
TV (b&w, 4 hrs per day)TV (color, 4 hrs per day) 50-100250
Toaster 1100
VCR 25
Vacuum Cleaner 700
Washing Machine (auto) 600
Water Heater (standard)(varies w/family size)Water Heater (energy saver)(varies w/family size) 45004500
Waterbed Heater (varies) 300
Water Pump 750-1000
Window Fan 200
ENERGY CONSUMPTION OF APPLIANCES
Item wattage/hour
Air conditioner 1,566
Blanket, electric 177
oiler 1,436
Clock 2
Clothes dryer 5,000
Coffee maker 1,225
Dehumidifier 257
Dishwasher 1,201
Disposal (sink) 445
Fan 200
Food Blender 386
Food freezer (15-21 cu. ft., conventional) 375
Food freezer (15-21 cu. ft., frost-free) 562
Frying pan 1,196
Heater, portable 1,322
Humidifier 117
Iron 1,088
Lighting 100
Microwave oven 1,500
Personal computer 50
Radio 71
Range 12,207
Refrigerator (16-18 cu. ft., frost-free) 615
Self-cleaning oven 2,500
Sewing machine 75
Television, color 332
Toaster 1,146
Vacuum cleaner 630
VCR 40
Washing machine 512
Water heater, quick recovery 4,500
 Equipment

 Starting Factor

 Running Wattage (avg)

 Water Heater (50 gallon)

 1

 4500-5000

 Portable Heater with fan

 2

 500-1500

 Fan (Central) - 1/4 HP

 3

 400

-1/3 HP

 3

 450

-1/2 HP

 3

 600

 Computer

 1

 200

 Fax Machine

 1

 50-1000

 Space Heater

 1

 500-1500

 Refrigerator/Freezer

 3

 750

 Home Security System

 1

 200

 Lights

 1

 40-150

 Range w/Oven

 1

 12200

- Small Burner

 1

 1300

- Large Burner

 1

 2400

 Garage Door Opener - 1/3 HP

 2

 750

- 1/2 HP

 2

 1050

 Well Pump - 1/3 HP

 2

 750

-1/2 HP

 2

 1000

-3/4 HP

 2

 1500

 Dishwasher w/o hot water

 2

 1200

 Television

 1

 150-400

 Radio

 1

 70-200

 Microwave

 1

 600-1500

 Coffee maker

 1

 750-1200

 Toaster

 1

 1100

 Hair Dryer

 2

 600-1400

 Washing Machine w/o Hot Water

 2

 1000

 Clothes Dryer

 2

 4850

 Air Cleaner

 2

 50

Dehumidifier

 2

 840

 Humidifier

 1

 177

 Vacuum Cleaner

 1

 800
HOUSEHOLD REQUIREMENTS

WATTS
Air Conditioner

575 - 2,000
Blender

200
Bread Maker

600
CB Radio

50
Central Air

2,000 - 4,500
Color TV

50 - 600
Coffee Maker

850 - 1,200
Computer

400
Deep Freezer

200 - 500
Dishwasher

400
Electric Fry Pan

1,150
Electric Grill

1,250
Electric Oven

4,000 - 10,000
Elec. Range Burner

1,000 - 1,200
Furnace Fan

1,200
Hair Dryer

1,500
Hot Plate

1,200
Hot Tub

1,700
Hot Tub Pump

750
Iron

1,000
Light Bulb

40-100
Microwave Oven

800 - 1,200
Radio

10 - 200
Refrigerator/Freezer

200 - 600
Toaster

1,150
Toaster Oven

1,200
Vacuum Cleaner

600
Water Heater

1,500 - 4,500
Waffle Iron

1,100
Window Fan

250
FARM EQUIPMENT

WATTS
Bulk Milk Cooler 1 - 12 HP

1,000 - 10,500
Electric Fence

7 - 10
Feed Conveyor 1/2 - 5 HP

575 - 4,500
Feed Grinding 1 - 10 HP

1,000 -9,000
Gutter Cleaner 3 - 5 HP

3,000 - 4,500
Infrared Lamp

250
Milking Machine 1/2 - 5 HP

575 - 4,500
Milk Parlor Heater

2,000 - 10,000
Shop Tools 1/6 - 1 HP

215 - 1,000
Silo Unloader 2 -71/2

2,000 - 7,000
Space Heater

1,000 - 5,000
Ventilation Fans

215 - 1,000
Water Pump 1/3 - 2

400 - 2,000
Yard Light

100 - 1,000
Item Running Watts Starting Surge
100 watt light bulb 100 100
Radio AM/ FM stereo 50-200 50-200
Radio CB 50 50
Fan 200 200
Television 300-400 300-400
Microwave oven 700 1000
Air conditioner 3250 5000
Furnace fan (1/3 HP blower) 600 1800
Vacuum cleaner 600 750
Sump pump (1/3 HP) 700 2100
Refrigerator/ Freezer 800 2400
Freezer 500 1500
6" circular saw 800 1000
Floodlight 1000 1000
1/2" electric drill 1000 1250
Toaster 1200 1200
Coffee maker 1200 1200
Electric skillet 1200 1200
14" electric chain saw 1200 1500
1/2 HP water well pump 1000 3000
Hot plate 1500 1500
Electric range 10000 10000
10" table saw 2000 6000
Hot water heater 5000 5000
 

Electric Motor Rating HP

  

Approximate Running Watts

  

Universal Motors Small Appliance

  

Reduction Induction Motors

  

Capacitor Motors

  

Split Phase Motors

1/8

275

400

600

850

1200

1/4

400

500

850

1050

1700

1/3

450

600

975

1350

1950

1/2

600

750

1300

1800

2600

3/4

850

1000

1900

2600

**

1

1000

1250

2300

3000

**

1 1/2

1600

1750

3200

4200

**

2

2000

2350

3900

5100

**

3

3000

**

5200

6800

**
** Motors of higher HP are not generally used.
WATER WELL PUMP KW REQUIREMENTS
Water Well
Pump HP Rating

Externally Regulated Generator

  Internally Regulated Generator
 

Min. KW

  

Min. KVA

  

Min. KW

  

Min. KVA

1/3

1.5

1.9

1.2

1.5

1/2

2.0

2.5

1.5

1.9

3/4

3.0

3.8

2.0

2.5

1

4.0

5.0

2.5

3.125

1 1/2

5.0

6.25

3.0

3.8

2

7.5

9.4

4.0

5.0

3

10.0

12.5

5.0

6.25

5

15.0

18.75

7.5

9.4

7 1/2

20.0

25.0

10.5

12.5

10

30.0

37.5

15.0

18.8
 

Appliance

Wattage (approx.)

13" color TV

50

19" color TV

120

Stereo

50

VCR

25

Satellite Receiver

20

Heating pad

50

Electric blanket

150

Electric drill

500

Computer

70

Computer monitor

55

Computer printer

20

Hand mixer

100

Blender

350

Toaster

1250

Microwave

650-1000

Coffee maker

1250 brew, 200 warm

13" color TV

50

Satellite Receiver

20

Computer/monitor

125

Coffee Maker

1250

Microwave

1000

12 Volt lighting

6A (4 ea. 1.5A bulbs)

12 Volt pump

6A

12 Volt fans

3A

 

Appliance

 Average Wattage
Air Cleaner

100
Air Conditioner
    8,000 BTU

1067
  12,000 BTU 

1600
  18,000 BTU

3500
Blanket(Electric)

177
Blender

386
Broiler

1430
Clock

2
Clothes Dryer (8 loads/week)

4856
Coffee Maker

894
Crock Pot

60
Deep Fat Fryer

1448
Dehumidifier

257
Dishwasher

1201
Fan
     Attic

370

     Furnace

292
     Window

200
Food Freezer
  15 ft3 standard

341
  15 ft3 frostless

440
  20 ft3 standard

494
  20 ft3 frostless

575
Food Disposer

445
Frying Pan

1196
Hair Dryer

1000
Heat Lamp

250
Heating Pad

65
Heat Tape(10 ft)

70
Hot Plate

1257
Humidifier

117
Iron

1088
Light Bulb
  60 Incandescent

60

  40 Fluorescent

50

Appliance

 Average Wattage
Microwave Oven

1450
Oil Burner

266
Portable Heater   1500 watt used   5 hr/day

1500
Radio

71
Radio-Phono

109
Range

12200
Refrigerator
  12 ft3 standard

241
  12 ft3 frostless

321
Refrig./Freezer
  14 ft3 standard

326
  14 ft3 frostless

615
  16 ft3 standard

516
  16 ft3 frostless

638
  21 ft3 frostless

736
Roaster

1333
Stereo

50
Television
B & W(tube)

160
B & W (solid state)

55
Color (tube)

300
Color (solid state)

200
Toaster

1146
Toaster/Oven

1425
Vacuum Cleaner

630
Waffle Iron

1160
Washer
  Automatic

512
  Non-Auto

286
Water Bed

350
Water Heater
  Standard

2445
  Quick Recovery

4475
Water Pump

460
APPLIANCE USAGE     
Appliance               Typical
                        Wattage
         
         Aquarium (50 Gal.)         55
Blanket                   180
Clock                       3
Clothes dryer
   Thermostat control   5,500
   Moisture sensor      5,500
Clothes washer            510
(does not include
cost of hot water)
Coffee maker (drip)     1,000
Compactor, trash          460
         
Computer
   PC desktop             150
   Laser printer           70
   Dot matrix printer      35
Dehumidifier
   15 pint capacity       350
   20 pint capacity       480
   40 pint capacity       625
Dishwasher (does not    1,200
include cost of 
hot water)
Fans, medium speed
   Ceiling, 4-ft. dia.     40
   Oscillating, 12"        35
   Box, 20 inch           100
   Whole house, 30 inch   400
Garage door opener        800
Hair dryer
   Low                    250
   High                 1,000
Heater, portable
   Low                    500
   High                 1,500
Lighting (incandescent)
   40 watt lamp            40
   60 watt lamp            60
   100 watt lamp          100
Microwave oven
   Small                  500
   Large                1,500
Pool pumps
   ‡ horsepower           600
   � horsepower           860
   1 horsepower         1,070
   1 ‡ horsepower       1,500
Radio                      75
Range, burners
   6" burner, high      1,300
   8" burner, high      2,350
Range, oven             3,300
   Self-clean cycle     1,500
Roof ventilator-1/20 hp   175
Sewing machine             75
Toaster                 1,100
Television, color
   14 to 19-inch           70
   23 to 26-inch          130
VCR                        25
Vacuum cleaner            630
Waterbed, king-size       350
Well pump               1,000    
Whirlpool tub           1,800
Kitchen Appliances
Kitchen Appliances Average Wattage
Dishwasher*** 1200
Range (Electric)
- Full Time Cooking* 7-12kw
- Small Surface Element* 1,300
- Large Surface Element* 2,400
- Oven - (non-self-cleaning)* 3,200
- Oven (self-cleaning)* 3,200
- Broiler Unit 3,600
- Self-Cleaning Feature* 4,000
Microwave Oven 700
Roaster* 1,320
Trash Compactor 400
Baby Food Warmer 165
Blender 400
Broiler (portable)* 1,500
Can Opener 288
Carving Knife 100
Clock 2
Coffee Maker (automatic percolator) 850
Coffee Maker (automatic drip) 1,500
Egg Cooker 520
Corn Popper 575
Deep Fat Fryer 1,500
Disposer 500
Fondue/Chafing Dish* 800
Food Dehydrator* 875
Fry Pan* 1,100.
Grinder (food or coffee) 150
Griddle* 1,200
Hot Plate* 1,250
Ice Crusher 300
Juicer 90
Knife Sharpener 100
Hand Mixer 125
Standing Mixer 150
Sandwich Grill 1,150
Toaster 1,150
Waffle Iron* 1,100
Warming Tray 140
Slow Cooker-Low 75
Slow Cooker-High 150
Outdoor Grill 1,500
Wok Pan 1,000
Meat Slicer 200
Toaster Oven* 1,500
Burger Grill 510
Plastic Bag Sealer 58
Pressure Cooker 1,300
Hot Dog Cooker 1,500
Crepe Maker 1,000
TYPICAL WATTAGE RATING OF ELECTRICAL APPLIANCES

Appliance

Approx. Wattage

Air Conditioner (Window, 120V)

Up to 1,500

Broiler

1,500

Clothes Dryer

Up to 5,000

Coffee Maker (10-cup)

850

Dishwasher

Up to 1,300

Fan (Attic)

365
Food Blender 400
Hair Dryer 800-1,300
Heat Lamp (Infra Red) 250
Heater (240V Baseboard) 250 per foot
Iron (Hand) 1,250
Microwave Oven 1,500
Range 8,000-12,000
Refrigerator 300
Stereo 30-120
Television (Color) 100-300
Toaster 1,150
Vacuum Cleaner 800
Washing Machine 700
Water Heater (Quick Recovery) 4,500
Water Pump 700-2,000
Tool Running Wattage Starting Wattage
Circular Saw 1200 2400
Drill 720 1800
Edger 960 2400
Electric Chainsaw 1200 2400
Electric Lawn Mower 1440 4320
Electric Pressure Washer 1200 3600
Electric String Trimmer 600 1500
Jig Saw 720 1800
Lights 75 75
Miter Saw 840 2100
Orbital Sander 600 1800
Paint Sprayer 360 1080
Planer 960 2400
Radio 300 300
Router 600 1500
Water Pump 1000 3000
Wet/Dry Vacuum 888 2500
Winch 1800 5400

One horsepower also equals 745.699 watts

A power level of 1 hp is approximately equivalent to
746 watts (W) or 0.746 kilowatts (kW)

the absolute mks unit of power equal to the work
done at the rate of one joule per second or to the
power produced
by a current of one ampere across a potential
difference of one volt : 1/746 horsepower


Work = Force x Distance
Calorie - equals the amount of heat required to raise 1 gram of pure water from 14.5 to 15.5� Celsius at standard atmospheric pressure. 1 calorie is equal to 4.1855 joules. The abreviation for calorie is cal. A kilocalorie, abbreviated kcal, is equal to a 1000 calories. 1 kilocalorie is equal to 4185 joules.

Btu - also called British thermal unit is the amount of energy required to raise the temperature of one pound of water one degree Fahrenheit.
Watt (W/m2 or Wm-2) - a metric unit of measurement of the intensity of radiation in watts over a square meter surface. One watt is equal to one joule of work per second. A kilowatt (kW) is the same as 1000 watts.



Common Units
of Power

SI:
Watts (W)
1000 W = 1 kW
Kilowatt (kW)
1 kW = 1.341 hp
English
Horsepower (hp)
1 hp = 0.746 kW



Measure the height of a set of stairs that takes you up about three stories.
Time yourself while you run up the stairs as quickly as possible.
Divide the height of the stairs by the time it took you to ascend them. This will give you your speed.
For instance, if it took you 15 seconds to run up 10 meters, then your speed was 0.66 m/s (only your speed in the vertical direction is important). Now you need to figure out how much force you exerted over those 10 meters, and since the only thing you hauled up the stairs was yourself, this force is equal to your weight. To get the amount of power you output, multiply your weight by your speed.

Power (W) = (height of stairs (m) / Time to climb (s) ) * weight (N)
Power (hp) = [(height of stairs (ft) / Time to climb (s) ) * weight (lb)] / 550

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