Wattage Requirement Calculator

Fill in the boxes as shown below. Check Items: Mark the items you want to power by clicking in the check box next to each item. Mark Quantity: If there is more then one unit of an item, type the number into the Quantity Box. Volts: Select the voltage used for each item. To set all the items in the group to same voltage, use Set all at the top of the column. Phase: Select the phase used for each item. To set all the items in the group to same phase, use Set all at the top of the column. Running Amps: If you know the running amps, and it is different than the "typical" value type the number in the box. Watts running and starting will be calculated based on the voltage you selected. Running Wattage: If you do not know the actual running and watts leave the "Specific" box blank and the "Typical Wattage" will be used. If you do know the specific wattage type the wattage into the "Specific" box for that item. Starting Wattage: If you do not know the actual starting and watts leave the "Specific" box blank and the "Typical Wattage" will be used. If you do know the specific wattage type the wattage into the "Specific" box for that item. Starting wattage must be equal to or larger than running amperage or will be ignored. kW / kVA: This is the minimum size of the generator for this item. Totals are shown at the bottom of the page. . Household & Office + Contractor + Industrial Motors + Motor Power Calculator  Household & Office  Volts Phase Run Amps (If known) Running Wattage Starting Wattage kW / kVA Set All Set All Calc Watts Typical Specific Typical Specific Air Conditioner, Central, BTU 1400 2200   Air Conditioner, Central, BTU 2500 3300   Air Conditioner, Central, BTU 3800 4950   Air Conditioner, Window, 8,000 BTU 1200 2160   Blanket, Electric 400 0   Blender 200 0   Bread Maker 600 2300   Broiler 1350 0   Broom , Electric 500 0   CD player & Speaker 100 0   Clothes Dryer, Gas 650 720   Clothes Dryer, Electric 750 1800   Coffee Maker 550 1000   Computer & Monitor 720 0   Computer & Large Monitor 900 0   Computer Network Equipment 100 0   Computer Printer Inkjet 350 0   Computer Printer Laser 720 0   Computer UPS , Personal 500 850   Computer UPS , Large 3000 6500   Converter 600 0   Copy Machine 1600 0   Dehumidifier 650 800   Dishwasher, Cool Dry 700 1400   Dishwasher, Hot Dry 1450 1400   Freezer 700 2200   Fry Pan, Electric 1300 0   Furnace Fan, gas or fuel, 1/8 HP 300 500   Furnace Fan, gas or fuel, 1/6 HP 500 750   Furnace Fan, gas or fuel, 1/4 HP 600 1000   Furnace Fan, gas or fuel, 1/3 HP 700 1400   Furnace Fan, gas or fuel, 1/2 HP 875 2350   Garage Door Opener, 1/4 HP 550 1100   Garage Door Opener, 1/3 HP 725 1400   Hair Dryer 900 0   Heat Pump 4800 10800   Hot Tub Heater 1700 1700   Hot Tub Pump 800 950   Iron 1000 0   Lights, Incandescent 100 0   Lights, Fluorescent 90 125   Lights, Flood 500 0   Lights, Low Voltage 25 0   Microwave Oven 625 800   Range, Electric, 6-inch elements 1500 0   Range, Electric, 8-inch elements 2100 0   Refrigerator 700 2200   Slow Cooker 130 0   Toaster, 2-slice 1050 0   Toaster, 4-slice 1650 0   Other Appliances or Devices, 1       Other Appliances or Devices, 2       Other Appliances or Devices, 3       Oven 3410 0   Radio or Stereo 350 0   Pump, Sump, 1/3 HP 800 1300   Pump, Sump, 1/2 HP 1050 2150   Pump, Well, 1/3 HP 750 1500   Pump, Well, 1/2 HP 900 2000   Pump, Well, 3/4 HP 1500 3000   Pump, Well, 1 HP 2000 4000   Pump, Well, 1 - 1/2 HP 2500 5000   Pump, Well, 2 HP 3750 7500   Pump, Well, 3 HP 5000 10000   Pump, Well, 5 HP 7500 15000   Pump, Well, 7 - 1/2 HP 10000 20000   Pump, Well, 10 HP 15000 30000   Radio 200 0   Security System (Alarm Panel) 200 0   Sewing Machine 200 0   Space Heater 800 0   Television, Color 300 0   Toaster 900 0   VCR 200 0   Vacuum Cleaner, Standard 800 0   Vacuum Cleaner, Heavy Duty 1100 0   Washer & Dryer 2000 3000   Water Heater, Electric 2000 3000   Household Totals               Back to top                                                                            Contractor Volts Phase Run Amps (If known) Running Wattage Starting Wattage kW / kVA Set All Set All Calc Watts Typical Specific Typical Specific Air Compressor, 1/2 HP 1000 2000   Air Compressor, 1 HP 1500 4500   Air Compressor, 1-1/2 HP 2200 6000   Air Compressor, 2 HP 2800 7700   Battery Charger 3000 0   Chainsaw, Electric, 12 ", 1/2 HP 900 0   Chainsaw, Electric, 14 ", 2 HP 1100 0   Cultivator, Electric, 1/3 HP 7000 1400   Drills, 1/4 inch 3 amps 300 400   Drills, 3/8 inch 4 amps 440 600   Drills, 1/2 inch 5.4 amps 600 900   Floor Polisher, 16 ", 3/4 HP 1400 3100   Floor Polisher, 20 ", 1 HP 1600 4500   Grinder, Bench, 6 " 720 1000   Grinder, Bench, 8 " 1400 2500   Grinder, Bench, 10 " 1600 3600   Hammer, Demolition 1900 3300   Hedge Trimmer, Electric, 18 " 400 0   Impact Wrench 1/2 " 750 1200   Impact Wrench 3/4 " 950 1400   Impact Wrench 1 " 1400 2400   Lights, Flood 1500 0   Mixer, Drum, 55 gallons, 1/4 HP 700 1200   Other Tools, 1       Other Tools, 2       Other Tools, 3       Pump, Submersible, 400 GPH 200 400   Pump, Submersible Centrifugal, 900 GPH 500 400   Saw, Band, 14 " 1100 1400   Saw, Circular, Heavy-duty, 6 1/2 " 800 1200   Saw, Circular, Heavy-duty, 7 1/4 " 1400 2300   Saw, Circular, Heavy-duty, 8 1/4 " 1800 3000   Saw, Miter, 10 amp 1100 2000   Saw, Miter, 15 amp 1650 3000   Saw, Saws All, Heavy-duty 750 1400   Saw, Table and Radial, 9 " 1500 3000   Saw, Table and Radial, 10 " 1800 4500   Saw, Worm Drive, 7 1/4" (Skill Saw) 1800 2600   Trimmer, Electric, Standard, 9" 350 0   Trimmer, Electric, Heavy-duty, 12" 500 0   Vacuum, Wet and Dry, 1.7 HP 900 0   Vacuum, Wet and Dry, 2 1/2 HP 1300 0   Washer, High-pressure,  5/8 HP 900 2700   Washer, High-pressure, 1 HP 1200 3600   Washer, High-pressure, 1-1/2 HP 1450 4300   Washer, High-pressure, 3 HP 3125 9300   Contractor Totals               Back to top                                                                            Industrial Motors Volts Phase Run Amps (If known) Running Wattage Starting Wattage kW / kVA Set All Set All Calc Watts Typical Specific Typical Specific Capacitor Start Induction Motors, 1/3 HP 720 1300   Capacitor Start Induction Motors, 1/2 HP 975 2100   Capacitor Start Induction Motors, 3/4 HP 1400 3100   Capacitor Start Induction Motors, 1 HP 1600 4500   Capacitor Start Induction Motors, 1-1/2 HP 2200 6000   Capacitor Start Induction Motors, 2 HP 2850 7700   Capacitor Start Induction Motors, 3 HP 3900 12,000   Capacitor Start Induction Motors, 5 HP 6800 16,500   Fan Duty Motors, 1/8 HP 400 600   Fan Duty Motors, 1/6 HP 550 850   Fan Duty Motors, 1/4 HP 650 1200   Fan Duty Motors, 1/2 HP 800 1600   Fan Duty Motors, 3/4 HP 1100 2400   Household & Office, Single Phase             Household & Office, Three Phase             Household & Office TOTAL                           Contractor, Single Phase             Contractor, Three Phase             Contractor TOTAL                           Industrial Motors, Single Phase             Industrial Motors, Three Phase             Industrial Motors TOTAL                           TOTAL, Single Phase             TOTAL, Three Phase             TOTAL               Maximum Rating Required             Minimum Rating Required

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