Generator Wattage Chart (& Printable PDF)

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Discover our handy generator wattage chart so you can quickly get a rough estimation of what size your machine should be.

Before going into the numbers from reputable sources like government websites, Honda, and Home Depot, you do need to know the actual power consumption of your appliance brands and sizes can still vary.

In simpler words, the generator wattage charts can be a helpful starting point but you generally want to check the power output you actually need with your devices.

Additionally, you typically need a generator size with a safety margin of at least 10% to 20% and sometimes more.

Next, for certain bigger devices like air conditioning systems, you want to check the amp chart and necessary THD levels too.

Kitchen Gear Wattage Chart

Kitchen ApplianceRunning WattsAdditional
Starting Watts
Starting Watts
Air Fryer1600 Watts1600 Watts
Blender400 Watts450 Watts850 Watts
Bread Machine850 Watts850 Watts
Coffee Maker600 Watts600 Watts
Cooker Hood150 Watts150 Watts
Deep Fryer1500 Watts1500 Watts
Dishwasher220 Watts320 Watts540 Watts
Deep Freezer600 Watts950 Watts1650 Watts
Electric Frying Pan1500 Watts1500 Watts
Electric Grill1650 Watts1650 Watts
Electric Kettle1500 Watts1500 Watts
Electric Oven3500 Watts3500 Watts
Electric Stove3000 Watts3000 Watts
Food Dehydrator600 Watts600 Watts
Ice Maker300 Watts300 Watts
Juicer800 Watts800 Watts
Induction Cooktop (One Top)1400 Watts400 Watts1800 Watts
Microwave Oven (650 Watts)1000 Watts1000 Watts
Microwave Oven (800 Watts)1300 Watts1300 Watts
Microwave Oven (1000 Watts)1500 Watts1500 Watts
Popcorn Machine650 Watts650 Watts
Pressure Cooker1200 Watts1200 Watts
Refrigerator800 Watts1400 Watts2200 Watts
Rice Cooker700 Watts700 Watts
Sandwich Maker750 Watts750 Watts
Slow Cooker270 Watts270 Watts
Toaster1200 Watts1200 Watts
Waffle Iron1000 Watts1000 Watts
Wine Cooler90 Watts90 Watts
Kitchen Appliance Wattage Estimation Chart

Daily Living Devices Wattage Chart

Daily Living ApplianceRunning WattsAdditional
Starting Watts
Starting Watts
Cell Phone Charger25 Watts25 Watts
Ceiling Fan75 Watts75 Watts
Central Air (2 Ton
= 24,000 BTU)
1500 Watts3000 Watts4500 Watts
Central Air (3 Ton
= 36,000 BTU)
2250 Watts4500 Watts6750 Watts
Central Air (4 Ton
= 48,000 BTU)
3000 Watts6000 Watts9000 Watts
Central Air (5 Ton
= 60,000 BTU)
3750 Watts7500 Watts11250 Watts
Dehumidifier500 Watts500 Watts
Garage Door Opener720 Watts720 Watts1440 Watts
Heat Pump
(18000 BTU)
2250 Watts1650 Watts3900 Watts
Hot Water Heater4500 Watts4500 Watts
(13 Gallons)
175 Watts175 Watts
Incandescent Light Bulbs60 Watts60 Watts
Inkjet Printer60 Watts60 Watts
Laptop250 Watts250 Watts
Laser Printer800 Watts800 Watts
LED Light Bulb15 Watts15 Watts
Portable Fan40 Watts80 Watts120 Watts
Radiant Heater1300 Watts1300 Watts
Space Heater1320 Watts1320 Watts
Sump Pump (1/3 HP)800 Watts500 Watts1300 Watts
Sump Pump (1/2 HP)1050 Watts1100 Watts2150 Watts
Water Heater
(50 Gallons)
4500 Watts4500 Watts
Well Pump (1/3 HP)650 Watts400 Watts1050 Watts
Well Pump (1/2 HP)700 Watts500 Watts1200 Watts
Well Pump (1 HP)1400 Watts1100 Watts2500 Watts
Well Pump (2 HP)2300 Watts1700 Watts4000 Watts
Window Air Conditioner
(10,000 BTU)
1000 Watts500 Watts1500 Watts
Window Air Conditioner
(12,000 BTU)
1200 Watts600 Watts1800 Watts
Window Air Conditioner
(15,000 BTU)
1500 Watts750 Watts2250 Watts
Daily Living Devices Power Consumption Chart

Personal Care Devices Power Consumption

Personal Care DeviceRunning WattsAdditional
Starting Watts
Starting Watts
Clothes Dryer
5400 Watts1350 Watts6750 Watts
Clothes Dryer
700 Watts1800 Watts2500 Watts
Curling Iron100 Watts100 Watts
Electric Shaver15 Watts15 Watts
Hair Dryer1800 Watts100 Watts1900 Watts
Iron1200 Watts1200 Watts
Straightening Iron100 Watts100 Watts
Vacuum Cleaner1400 Watts1400 Watts
Washing Machine600 Watts900 Watts1500 Watts
Personal Care Appliance Wattage Needs Estimations

Home Entertainment Wattage Chart

Home Entertainment
Running WattsAdditional
Starting Watts
Starting Watts
Computer Monitor80 Watts80 Watts
Desktop Computer300 Watts300 Watts
Flat Screen TV
120 Watts120 Watts
Flat Screen TV
190 Watts190 Watts
Game Console140 Watts140 Watts
Home Phone5 Watts5 Watts
Internet Router20 Watts20 Watts
Laptop250 Watts250 Watts
Projector200 Watts200 Watts
RadioUp to 200 WattsUp to 200 Watts
Sewing Machine100 Watts100 Watts
Stereo33 Watts33 Watts
Home Entertainment Wattage Chart Estimations

RV & Camping Generator Wattage Chart

RV & Camping DeviceRunning WattsAdditional
Starting Watts
Starting Watts
Inflator Pump50 Watts50 Watts
RV Air Conditioner
(3,000 BTU)
300 Watts410 Watts710 Watts
RV Air Conditioner
(5,000 BTU)
500 Watts800 Watts1300 Watts
RV Air Conditioner
(10,000 BTU)
1000 Watts1050 Watts2050 Watts
RV Air Conditioner
(13,500 BTU)
1350 Watts1550 Watts2900 Watts
RV Air Conditioner
(15,000 BTU)
1500 Watts2000 Watts3500 Watts
RV Air Conditioner
(18,000 BTU)
1800 Watts2400 watts4200 Watts
RV Refrigerator300 Watts500 Watts800 Watts
RV Generator Wattage Chart Estimations

Construction & DIY Tools Wattage Chart

Construction Or DIY ToolRunning WattsAdditional
Starting Watts
Starting Watts
Air Compressor (1/2 HP)975 Watts625 Watts1600 Watts
Air Compressor (1 HP)1400 Watts3600 Watts5000 Watts
Airless Paint Sprayer600 Watts1200 Watts1800 Watts
Angle Grinder900 Watts900 Watts
Battery Charger (15 Amp)500 Watts200 Watts700 Watts
Band Saw1200 Watts1200 Watts
Belt Sander (3″)1200 Watts2400 Watts3600 Watts
Bench Grinder (8″)1400 Watts1100 Watts2500 Watts
Circular Saw (7.25″)1400 Watts2300 Watts3700 Watts
Coffee Maker600 Watts600 Watts
Concrete Vibrator (1 HP)1080 Watts1080 Watts
Concrete Vibrator (3 HP)2400 Watts2400 Watts
Disc Sander1200 Watts1200 Watts
Electric Drill (3/8″)440 Watts160 Watts600 Watts
Electric Drill (1/2″)600 Watts300 Watts900 Watts
Fan Duty (1/4 HP)650 Watts550 Watts1200 Watts
Floodlight150 Watts150 Watts
Halogen Lights90 Watts90 Watts
Hammer Drill700 Watts300 Watts1000 Watts
Heat Gun1500 Watts1500 Watts
Impact Driver500 Watts500 Watts
Impact Wrench700 Watts700 Watts
Jack Hammer1260 Watts1260 Watts
Jig Saw700 Watts700 Watts
Laptop250 Watts250 Watts
Miter Saw1800 Watts3300 Watts5100 Watts
Multi Tool400 Watts400 Watts
Orbital Sander500 Watts500 Watts
Printer600 Watts600 Watts
Quartz Halogen Work Light
(1000 Watt)
1000 Watts1000 Watts
Radial Arm Saw1000 Watts1000 Watts2000 Watts
Rebar Cutter2400 Watts2400 Watts
Reciprocating Saw1200 Watts800 Watts2000 Watts
Rotary Hammer (15 Amp)1800 Watts1800 Watts
Sump Pump (1/3 HP)800 Watts500 Watts1300 Watts
Sump Pump (1/2 HP)1050 Watts1100 Watts2150 Watts
Table Saw (10″)2000 Watts2000 Watts4000 Watts
Wall Chaser2000 Watts2000 Watts
Wood Router1650 Watts1650 Watts
Construction site wattage chart estimations

Farm Equipment Power Consumption

Farm EquipmentRunning WattsAdditional
Starting Watts
Starting Watts
Electric Fence (25 Miles)250 Watts250 Watts
Milk Cooler1100 Watts700 Watts1800 Watts
Milker (2 HP Vacuum Pump)1000 Watts1300 watts2300 Watts
Farm Equipment Power Consumption Estimations

Gardening Tools Wattage Chart

Gardening ToolRunning WattsAdditional
Starting Watts
Starting Watts
Cultivator/Tiller1620 Watts1620 Watts
Electric Chainsaw
1100 Watts1100 Watts
Hedge Trimmer400 Watts400 Watts
Lawn Mower1500 Watts1500 Watts
Leaf Blower1440 Watts1440 Watts
Strimmer600 Watts600 Watts
Gardening Tools Wattage Chart Estimations

Generator Wattage Chart Printable PDF

Generator Wattage Chart Printable PDF

To get an idea of what your generator can deal with while you are at home or on the road, you can also check out our downloadable generator chart PDF.

Keep in mind that these are very rough estimations. You likely want to check the power needs of your actual devices.

Additionally, you need to use your calculator to add up the watt amounts in this guide to make sure your generator has enough output.

On top of the requirements you calculate, you typically want a safety margin of at least 10% to make sure you don’t overload your generator.

You may also need to keep an eye on the amp and volt requirements depending on what generator size you choose.

Lastly, for sensitive electronics, you preferably have an inverter generator or another low THD model.


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Mats is the founder and head editor of Generator Decision. With a combination of critical thinking, tireless research, and a healthy interest in electronics he helps people find the right generators and how to use these. At this point in the journey, Mats has done research on hundreds of portable generators.