Appliance Wattage Chart | Power Consumption

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In order to select the right generator size, you need to calculate how much energy you use. This is done by noting down the power consumption of all your appliances that will be running at the same time. This is where an appliance wattage chart comes in handy.

We prepared a chart containing information on starting and running wattage many appliances require. You can consult these charts for rough estimates to get an idea of how much watts each appliance uses. Before you make the final purchasing decision, make sure you check the label of every appliance or machine for exact wattage requirements.

We gathered the information in these charts from reputable industry and government websites, renowned generator manufacturers such as Generac, Honda, Yamaha, and store websites.

Home Appliance Wattage Chart

Heating and Cooling

ApplianceRunning WattsStarting Watts
Ceiling Fan75 W120 W
Central AC (24,000 BTU / 2 Ton)2,800 W8,600 W
Central AC (30,000 BTU / 2.5 Ton)3,600 W10,800 W
Dehumidifier300 W0 W
Electric Heater (Fan)1,500 W0 W
Electric Thermal Radiator500 W0 W
Electric Water Heater4,000 W0 W
Electric Water Heater (Immersion)3,000 W0 W
Electric Water Heater (Tankless)6,600 W0 W
Evaporative AC700 W0 W
Fan (Pedestal)50 W0 W
Fan (Table)30 W0 W
Fan (Wall)55 W0 W
Furnace Blower (1/2 HP)850 W2,350 W
Furnace Blower (1/3 HP)700 W1,400 W
Heat Pump (3 Ton)5,400 W7,200 W
Humidifier (13 Gallon)175 W0 W
Portable AC (5,000 BTU)600 W1,800 W
Window AC (8,000 BTU)960 W2,800 W
Window AC (10,000 BTU)1,200 W3,600 W
Mini-Split AC (12,000 BTU)1,500 W4,500 W
Mini-Split AC (18,000 BTU)2,200 W6,500 W


ApplianceRunning WattsStarting Watts
Light Bulb (Common)75 W0 W
Light Bulb (LED)9 W0 W
Night Light1 W0 W
Outdoor Light String250 W0 W
Tube Light (1500 MM)25 W0 W


ApplianceRunning WattsStarting Watts
Sump Pump (1/2 HP)1,050 W2,150 W
Sump Pump (1/3 HP)800 W1,300 W
Well Water Pump (1/2 HP)1,000 W2,100 W
Well Water Pump (1/3 HP)750 W1,600 W


ApplianceRunning WattsStarting Watts
Air Fryer1,500 W0 W
Blender500 W800 W
Chest Freezer450 W900 W
Coffee Maker750 W1,200 W
Crock Pot250 W0 W
Deep Freezer500 W1,500 W
Dishwasher1,500 W1,800 W
Electric Grill1,650 W0 W
Electric Kettle1,200 W3,000 W
Electric Oven2,150 W0 W
Electric Skillet1,500 W0 W
Electric Stove (8" Element)2,100 W0 W
Espresso Coffee Machine900 W1,500 W
Food Dehydrator800 W0 W
Food Processor400 W0 W
Garbage Disposal450 W1,600 W
Hot Water Dispenser150 W750 W
Induction Cooktop (Per Hob)1,200 W1,800 W
Microwave (1000 W)1,000 W0 W
Modern Fridge400 W600 W
Pressure Cooker700 W0 W
Range Hood65 W0 W
Refrigerator700 W2,200 W
Rice Cooker200 W500 W
Sandwich Maker700 W0 W
Slow Cooker160 W0 W
Smart Fridge500 W750 W
Steriliser650 W0 W
Toaster850 W0 W
Toaster Oven1,200 W0 W
Waffle Iron1,200 W1,725 W
Water Cooler80 W0 W
Water Dispenser100 W0 W
Wine Cooler (18 Bottles)83 W0 W


ApplianceRunning WattsStarting Watts
Curling Iron1,500 W0 W
Electric Shaver15 W20 W
Extractor Fan12 W0 W
Hair Dryer1,250 W0 W
Power Shower7,500 W10,500 W
Straightening Iron75 W300 W


ApplianceRunning WattsStarting Watts
Clothes Dryer (Electric)5,400 W6,750 W
Clothes Dryer (Gas)700 W1,800 W
Clothes Iron1,200 W0 W
Steam Iron350 W1,200 W
Washing Machine1,150 W2,250 W


ApplianceRunning WattsStarting Watts
Air Purifier30 W40 W
Robotic Vacuum Home Stand30 W90 W
Steam Cleaner1,000 W1,800 W
Vacuum Cleaner1,000 W1,500 W


ApplianceRunning WattsStarting Watts
Amazon Echo3 W0 W
Amplifier300 W0 W
Apple TV3 W0 W
AV Receiver450 W0 W
Blu Ray Player25 W0 W
Cell Phone25 W0 W
Computer Monitor25 W0 W
Desktop Computer100 W350 W
Home Phone3 W5 W
Home Sound System95 W0 W
Laptop60 W0 W
Mi Box5 W0 W
Nintendo Wii15 W0 W
Playstation 4165 W0 W
Playstation 5340 W0 W
Set Top Box27 W0 W
Soundbar30 W0 W
Stereo450 W0 W
Tablet10 W0 W
Television (CRT)500 W0 W
TV (43" LED)80 W0 W
TV (55" LED)90 W0 W
TV (65" LED)100 W0 W
TV (75" LED)115 W0 W
VCR / DVD Player100 W0 W
Video Game System40 W0 W
WiFi Router5 W15 W
Xbox 360160 W0 W
Xbox Series X200 W0 W


ApplianceRunning WattsStarting Watts
Cultivator (1/3 HP)700 W1,400 W
Electric Leaf Blower (Handheld)750 W1,440 W
Electric Lawn Mower900 W1,500 W
Electric Strimmer300 W500 W
Hedge Trimmer600 W1,500 W
Weed Cutter500 W600 W

Home Gym

ApplianceRunning WattsStarting Watts
Elliptical Bike240 W0 W
Exercise Bike100 W0 W
Treadmill300 W900 W


ApplianceRunning WattsStarting Watts
EV Home Charger1,600 W1,800 W
Garage Door Opener875 W2,350 W
Security System500 W0 W

Work Tools Wattage Chart

Work Essentials

ApplianceRunning WattsStarting Watts
2-Way Radio40 W0 W
Floodlight1,000 W0 W
Heater (Liquid Fuel 100,000 BTU)420 W1,260 W
Heater (Liquid Fuel 50,000 BTU)225 W675 W
Quartz Halogen Work Light (1000 W)1,000 W0 W
Quartz Halogen Work Light (500 W)500 W0 W
Sump Pump (1 HP)1,440 W4,000 W
Sump Pump (1/2 HP)1,050 W2,150 W

Construction and Jobsite Tools

ApplianceRunning WattsStarting Watts
Air Compressor (1/2 HP)1,000 W2,000 W
Air Compressor (1/4 HP)970 W1,600 W
Air Compressor (1 HP)1,600 W4,500 W
Air Compressor (2 HP)2,800 W7,700 W
Airless Sprayer (1/3 HP)600 W1,200 W
Angle Grinder900 W1,500 W
Belt Sander1,200 W2,400 W
Bench Grinder1,400 W2,500 W
Chainsaw (14”)1,200 W2,400 W
Circular Saw (7.25")1,400 W2,300 W
Concrete Vibrator (1 HP)1,100 W2,500 W
Concrete Vibrator (2 HP)1,800 W3,600 W
Electric Drain Cleaner250 W0 W
Electric Drill600 W900 W
Hammer Drill1,000 W3,000 W
High-Pressure Washer (1 HP)1,200 W3,600 W
Impact Wrench (1")1,200 W1,400 W
Jig Saw300 W700 W
Jointer/Planer1,800 W4,500 W
Miter Saw (10")1,800 W3,300 W
Orbital Sander600 W1,200 W
Reciprocating Saw960 W1,040 W
Shop Vac (6.5 HP / 14 Gal.)1,000 W1,500 W
Table Saw (10")1,800 W4,500 W
Welder (Electric)2,000 W2,500 W
Wood Router600 W1,500 W


ApplianceRunning WattsStarting Watts
Copy Machine1,600 W0 W
Fax70 W0 W
Paper Shredder200 W220 W
Printer (Inkjet)30 W50 W
Printer (Laser)300 W550 W
Projector220 W270 W
Scanner10 W18 W


ApplianceRunning WattsStarting Watts
Electric Fence (25 Miles)250 W0 W
Milk Cooler1,100 W1,800 W
Milker / Vacuum Pump (2 HP)1,000 W2,300 W

Camping and RV Wattage Chart

RV Camping Essentials

ApplianceRunning WattsStarting Watts
AM/FM Radio100 W0 W
Box Fan200 W0 W
Coffee Pot550 W900 W
Electric Water Heater (6 Gal.)1,440 W0 W
Furnace Fan (1/3 HP)700 W1,400 W
Hot Plate1,200 W1,725 W
Inflator Pump50 W150 W
LED Lights5.6 W0 W
Microwave (650 W)650 W0 W
Mini Fridge100 W200 W
RV Rooftop AC (11,000 BTU)1,000 W2,100 W
RV Rooftop AC (13,500 BTU)1,400 W2,900 W
RV Rooftop AC (15,000 BTU)1,700 W3,500 W
Space Heater1,800 W0 W
TV (32" LED)50 W0 W

Note: All charts are rough power estimates. Your actual power consumption may vary.

Starting Watts VS Running Watts Explained

machines, tools, and devices power consumption from the appliance wattage charts

When calculating power consumption, it’s important to factor in both starting and running watts of tools/appliances and your generator.

Running (rated, continuous) watts: This is the constant wattage that a generator can supply and that the tools/appliances need to keep working.

Starting (surge) watts: This is the wattage that the generator can supply momentarily and that the tools/appliances need to start. 

Note: Some appliances don’t require extra wattage to start. So there will be only one wattage for it to start and run. A good example of that is a light bulb. It requires 75 watts to work and doesn’t require extra wattage to start.

How to calculate your wattage requirements?

Once you know how many running and starting watts every appliance has, calculating wattage requirements is a matter of doing some simple math.

Here are the 5 steps to follow:

  1. List all the appliances you are going to use
  2. Put them all in a table together with starting and running watts (make sure you find this info on the tag of the appliance)
  3. Add up all the running watts
  4. Find the appliance with the highest starting watts requirement
  5. Add this number to the total running watts

The number you get is the starting wattage rating your generator needs to have. Here’s a simple example to illustrate this:


ApplianceRunning WattsStarting Watts
3 Light Bulb (LED)27 W0 W
Floor Fan50 W70 W
Microwave1,000 W0 W
Refrigerator / Freezer700 W2,200 W
Television (50" LED)85 W0 W
Total Running Watts:1,862 W
Total Starting Watts:4062 W

If you can’t find wattage requirements on the appliance/tool, you can calculate it using the following formula:

Watts (W or kW) = Volts (V) x Amps (A)

Amps (A) = Watts (W or kW) / Volts (V)

As you can see, all you need to calculate this are required volts and amps. Alternatively, you can get an appliance load tester and avoid doing equations.


How many watts to run a house?

In a typical, average-sized home, 5000 to 7500 watts would be enough to run essential items. A 10,000 watt generator would cover essentials as well as some extras. A typical home generator would need more than 15,000 watts to run an entire home with everything in it.

How many watts does a refrigerator use?

A refrigerator uses 700 watts to run and 2200 watts to start (rough estimates). The average use is between 400 and 750 watts, depending on the type and size of the fridge, how old it is, the room temperature, etc.

How many watts does a freezer use?

A freezer uses 500 watts to run and 1500 watts to start (rough estimates). Running watts average is between 450 and 900 watts depending on the size of the freezer and the model. The older the model, the more power it will need to run.

What size generator to run the refrigerator and freezer?

To calculate the generator size, for running a refrigerator and a freezer, calculate the total running wattage by adding the two and the higher starting wattage to the total. An average electric generator will usually have enough power to run both a freezer and a refrigerator.

How many watts does a TV use?

Depending on the size and type of the TV screen (LCD vs. LED), a TV needs from 20 to 200 watts to run. For example, a 24″ LED TV needs 40W, a 49″ LED TV needs 85W, an 85″ LED TV needs 120W, while a 30″ LCD TV needs 60W, a 42″ LCD TV needs 120W, and a 50″ LCD TV needs 150W.

What appliances use the most electricity in a household?

Electric water heaters (4000-6500 watts), heat pumps (5500 watts), and air conditioners (1000-4000 watts) use the most power in every household. In general, cooling and heating use 47% of all energy in an average home. Next is washing (1200W) and drying (5500W) clothes, which uses around 13% of the power. Electric grill, oven, and stove are also significant electricity users (1500-2500 watts).

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