How Much Does It Cost to Run a Dehumidifier?
Estimate dehumidifier electricity cost from watts, runtime, duty cycle, humidity, and electricity rate.
Last updated: May 2026
Watts are only part of the story
A dehumidifier does not always draw full compressor power all day. Duty cycle, humidity level, drainage, room temperature, and set point all affect real electricity use.
Use your all-in kWh rate
Electric bills often include delivery charges and other fees. For a realistic estimate, divide your total bill by total kWh or use the all-in rate shown by your utility.
Reducing runtime lowers cost
Sealing air leaks, fixing water intrusion, cleaning filters, and using continuous drainage can help the unit run more efficiently.