How Much Does a Dehumidifier Cost to Run?
Use our calculator to estimate your dehumidifier's electricity cost based on wattage, daily usage, and your local electricity rate.
Electricity Cost Calculator
500W
200W (small)800W (large)
12h
2h24h
$0.16
$0.08 (cheap)$0.40 (CA/HI)
$0.96
Per Day
$28.80
Per Month
$350
Per Year
Average Cost by Dehumidifier Size
| Size | Watts | Daily (12h) | Monthly | Yearly |
|---|---|---|---|---|
| Small (22-pint) | 280W | $0.54 | $16 | $196 |
| Medium (35-pint) | 420W | $0.81 | $24 | $294 |
| Large (50-pint) | 560W | $1.08 | $32 | $392 |
| XL (70-pint) | 720W | $1.38 | $41 | $504 |
* Based on $0.16/kWh (US average) and 12h/day operation
Money-Saving Tips
1. Choose an Energy Star certified dehumidifier (uses 15-20% less energy)
2. Use the built-in humidistat — set to 50% and let it cycle on/off
3. Place in the most humid room for maximum efficiency
4. Clean the filter monthly for optimal airflow
5. Use continuous drain instead of a tank (runs more efficiently)
Sources
- [1] Energy Star — Dehumidifier Specifications
- [2] EIA — Average US Electricity Price ($0.16/kWh, 2026)
- [3] DOE — Energy Saver Tips: Dehumidifiers
