How Many Watts Does a Dehumidifier Use?

Answer
500 W typical (300–700 W)

A dehumidifier uses about 500 watts while running. At a typical 8 hours a day that is 120.0 kWh per month, or about $20.40 at $0.17/kWh. Larger 50-pint units use 500–700 W while running.

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    For estimating and educational purposes only. Results are approximate and are not a substitute for a licensed professional, the manufacturer's instructions or your local code. Disclaimer

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    Dehumidifier power use at a glance

    Value
    Typical running watts500 W
    Range300–700 W
    Current at 120 V4.2 A
    Typical use8 h per day
    Energy per day4.00 kWh
    Energy per month120.0 kWh
    Cost per month ($0.17/kWh)$20.40
    Cost per year$248

    Check the label on your appliance for its exact rating. The calculator above uses your own watts, hours and electricity rate.

    Frequently asked questions

    Can I run a dehumidifier on a generator?

    Yes. Choose a generator whose running watts exceed 500 W and whose starting watts cover the motor surge.

    How many amps does a dehumidifier draw?

    About 4.2 A at 120 V.

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