How much does it cost to run a dehumidifier?
EIA data · June 2026About $20.08 a month at the U.S. average price of 18.34¢ per kilowatt-hour — but that figure moves a long way depending on where you live. Set your state below.
109.5 kWh a month at the U.S. average, 18.34¢/kWh for June 2026. Excludes fixed charges, taxes and time-of-use rates, which vary by utility and are on your bill.
Typical 300–800 W. Use the figure on your own label if you have it.
60% duty cycle applied — it draws power for part of that time.
A dehumidifier sits mid-table at #16 of 88, which means something else in the house costs more. See whether heating & cooling or something else drives your bill.
Published figures for this appliance disagree by a wide margin. Why other sites price a dehumidifier so differently.
How many watts a dehumidifier uses
A 30–50 pint residential dehumidifier draws roughly 300–700 W while its compressor runs. Larger basement units reach about 800 W.
- Low
- 300 W
- Typical
- 500 W
- High
- 800 W
What it costs across the country
Same appliance, same usage, different electricity price. Annual cost at 500 W and the default usage above.
| State | ¢/kWh | Per year |
|---|---|---|
| Hawaii | 52.72 | $693 |
| California | 34.74 | $456 |
| Massachusetts | 29.61 | $389 |
| New York | 29.49 | $387 |
| Ohio | 19.19 | $252 |
| Texas | 15.94 | $209 |
| Florida | 15.10 | $198 |
| Utah | 13.37 | $176 |
| Nebraska | 13.25 | $174 |
| Nevada | 13.11 | $172 |
Worth knowing
- A dehumidifier is a compressor appliance and cycles on humidity, so it draws power for well under the hours it is switched on once the target is reached.
- It releases the heat it removes back into the room, which raises cooling costs in summer if the room is also air conditioned.
- Emptying the tank promptly matters — most units shut off when full and then let humidity climb back, forcing a long catch-up run.
Other appliances
- Space heater
- Central air conditioner
- Window air conditioner
- Ceiling fan
- Electric blanket
- Heat pump
- Electric baseboard heater
- Portable air conditioner
Prices are statewide residential averages for June 2026 from the U.S. Energy Information Administration. They exclude fixed monthly charges, taxes and time-of-use rates. See how these figures are calculated.