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How much does it cost to run a dehumidifier? ($20.40/mo)
Running a dehumidifier costs about $20.40 / month
($0.68/day at 8 h/day, $0.17/kWh).
($0.68/day at 8 h/day, $0.17/kWh).
Running cost calculator
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A dehumidifier runs a small compressor for long stretches, so even modest wattage adds up over a damp season.
Cost at different electricity rates
| Electricity rate | Per day | Per month | Per year |
|---|---|---|---|
| $0.10/kWh | $0.40 | $12.00 | $146.00 |
| $0.15/kWh | $0.60 | $18.00 | $219.00 |
| $0.20/kWh | $0.80 | $24.00 | $292.00 |
| $0.25/kWh | $1.00 | $30.00 | $365.00 |
| $0.30/kWh | $1.20 | $36.00 | $438.00 |
| $0.40/kWh | $1.60 | $48.00 | $584.00 |
Cost over time
| Per hour of use | $0.09 |
| Per day (8 h) | $0.68 |
| Per month | $20.40 |
| Per year | $248.20 |
How to spend less running a dehumidifier
- Cut the hours: A dehumidifier at 8 h/day runs about $20.40/month — trimming one hour saves roughly $2.55/month.
- Wash cold: most of the energy heats water, so cold or eco cycles cut the bill sharply.
- Upgrade efficiency: a newer dehumidifier near 300 W uses far less than an old 700 W one.
- Kill standby: a smart plug or timer removes the ~1 W it draws even when off.
Want the raw figure? See how many watts a dehumidifier uses.
FAQ
How many watts does a dehumidifier use?
Typically 300-700 watts while the compressor runs.
How much does a dehumidifier cost to run?
Running 8 hours a day, expect a few dollars a week at average electricity rates.
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