Dehumidifier Running Cost Calculator
See what a dehumidifier costs to run
Dehumidifiers can help manage condensation, but running costs add up. Enter the appliance wattage, how long you run it and your electricity tariff to see the daily, monthly and annual cost and electricity use.
Daily cost
£0.43
Monthly cost
£12.96
Annual equivalent
£156
Daily electricity
1.6 kWh
Annual electricity
576 kWh
The default tariff is an example only. Running costs assume the appliance draws its rated power for the full time entered; many units cycle on and off, so real costs are often lower.
How to read the results
The calculation assumes the appliance draws its rated power for the whole time entered. In practice many units cycle on and off once the target humidity is reached, so your real cost is often lower. Tackling the moisture source and ventilation usually reduces how long a dehumidifier needs to run.
Frequently asked questions
It is an example value only. Enter the unit rate (pence per kWh) from a recent bill for an accurate result — tariffs change regularly.