Appliances
40
Each with its own page
Costliest a month
$377
Crypto Miner
Cheapest a month
$0.24
LED Light Bulb
Price used
17.23 cents
US average per kWh, 2025
All 40 appliances, ranked by monthly cost
| Appliance | Watts | Hours a day | kWh a month | Cost a month |
|---|---|---|---|---|
| Crypto Miner | 3,000 | 24 | 2,189 | $377 |
| Electric Furnace | 10,000 | 6 | 1,824 | $314 |
| Air Conditioner | 3,500 | 8 | 851 | $147 |
| Central Air Conditioner | 3,500 | 8 | 851 | $147 |
| Heat Pump | 3,500 | 8 | 851 | $147 |
| Space Heater | 1,500 | 8 | 365 | $63 |
| Pool Pump | 1,500 | 8 | 365 | $63 |
| Electric Water Heater | 4,500 | 2.5 | 342 | $59 |
| Portable Air Conditioner | 1,200 | 8 | 292 | $50 |
| Tankless Water Heater | 18,000 | 0.5 | 274 | $47 |
| Baseboard Heater | 1,000 | 8 | 243 | $42 |
| Window Air Conditioner | 900 | 8 | 219 | $38 |
| Hot Tub | 300 | 24 | 219 | $38 |
| Mini-Split Heat Pump | 800 | 8 | 195 | $34 |
| Dehumidifier | 500 | 12 | 182 | $31 |
| Electric Fireplace | 1,500 | 4 | 182 | $31 |
| Clothes Dryer | 4,000 | 0.9 | 109 | $19 |
| Whole-House Fan | 400 | 8 | 97 | $17 |
| Aquarium | 100 | 24 | 73 | $13 |
| Electric Oven | 2,500 | 0.7 | 53 | $9 |
| Gaming PC | 400 | 4 | 49 | $8 |
| Well Pump | 1,000 | 1.5 | 46 | $7.86 |
| Electric Stove | 1,500 | 1 | 46 | $7.86 |
| Refrigerator | 62 | 24 | 45 | $7.80 |
| Dishwasher | 1,300 | 1 | 40 | $6.81 |
| Freezer | 45 | 24 | 33 | $5.66 |
| Computer | 150 | 6 | 27 | $4.72 |
| Electric Blanket | 150 | 6 | 27 | $4.72 |
| Chest Freezer | 35 | 24 | 26 | $4.40 |
| Air Fryer | 1,500 | 0.4 | 18 | $3.14 |
| Television | 100 | 5 | 15 | $2.62 |
| Ceiling Fan | 60 | 8 | 15 | $2.51 |
| Sump Pump | 800 | 0.5 | 12 | $2.10 |
| Humidifier | 40 | 10 | 12 | $2.10 |
| Washing Machine | 500 | 0.7 | 11 | $1.83 |
| Microwave | 1,100 | 0.25 | 8 | $1.44 |
| Hair Dryer | 1,800 | 0.15 | 8 | $1.41 |
| Coffee Maker | 1,000 | 0.25 | 8 | $1.31 |
| Electric Kettle | 1,500 | 0.15 | 7 | $1.18 |
| LED Light Bulb | 9 | 5 | 1 | $0.24 |
Source: Planning watts and hours from this site, priced at 17.23 cents per kWh, the 2025 US residential average from EIA Form EIA-861. A month is 30.4 days of use. Seasonal appliances such as air conditioners are not used every month of the year, and each page shows the yearly figure.
Browse by kind of appliance
Cooling
- 3,500 wattsAir ConditionerAbout $147 a monthOpen
- 900 wattsWindow Air ConditionerAbout $38 a monthOpen
- 3,500 wattsCentral Air ConditionerAbout $147 a monthOpen
- 1,200 wattsPortable Air ConditionerAbout $50 a monthOpen
- 60 wattsCeiling FanAbout $2.51 a monthOpen
- 800 wattsMini-Split Heat PumpAbout $34 a monthOpen
- 400 wattsWhole-House FanAbout $17 a monthOpen
Heating
Water
Kitchen and laundry
- 62 wattsRefrigeratorAbout $7.80 a monthOpen
- 45 wattsFreezerAbout $5.66 a monthOpen
- 4,000 wattsClothes DryerAbout $19 a monthOpen
- 500 wattsWashing MachineAbout $1.83 a monthOpen
- 1,300 wattsDishwasherAbout $6.81 a monthOpen
- 1,100 wattsMicrowaveAbout $1.44 a monthOpen
- 2,500 wattsElectric OvenAbout $9.17 a monthOpen
- 1,500 wattsElectric StoveAbout $7.86 a monthOpen
- 35 wattsChest FreezerAbout $4.40 a monthOpen
- 1,500 wattsElectric KettleAbout $1.18 a monthOpen
- 1,500 wattsAir FryerAbout $3.14 a monthOpen
- 1,000 wattsCoffee MakerAbout $1.31 a monthOpen
Electronics and lighting
How we work out each cost
- Start with the watts the appliance draws while it runs. For appliances that cycle on and off, we use the average across 24 hours.
- Multiply by the hours of use in a day, divide by 1,000 and you have kWh a day.
- Multiply by 30.4 days for a month, then by the price per kWh.
The watts are typical planning ranges, and your own appliance will differ. The hours are assumed days of use, and a heater or air conditioner runs more in a cold or hot spell than in a mild one. Treat each figure as a way to compare appliances, then use the appliance cost calculator with your own numbers.
Where the prices come from
How to measure your own
A plug-in watt meter shows the draw and the kWh of any 120 volt appliance. Leave it on a refrigerator for a few days to get a true average. Large 240 volt appliances such as dryers, ranges and central air conditioners need the nameplate or a whole-home monitor. Our guide to what uses the most electricity explains how to rank your own home.
Appliance cost questions
Which appliances cost the most to run?
In our planning figures, crypto miner, electric furnace, air conditioner cost the most for a month of use, because they draw thousands of watts for hours. The ranking changes with your climate and habits.
How do you work out what an appliance costs?
Divide the watts by 1,000, multiply by the hours of use, then multiply by your price per kWh. Each appliance page shows the steps and prices them at the US average and in other states.
Why not use the wattage on the label?
The label gives the maximum draw. Appliances with thermostats, such as refrigerators and air conditioners, run part of the time, so their average draw is lower. We use planning averages and show the range.
Can I change the numbers for my own appliance?
Yes. Every page has a calculator that starts from our planning figures. Change the watts, hours or price to match your home.