Dehumidifiers Electricity Cost Calculator

Dehumidifiers are rated in Watts (W) or Kilowatts (kW). Look for the energy rating on your dehumidifier (usually displayed on the back of machine) then use our energy calculator to see how much it will cost to run per hour, day or week.

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Or:

Power Rating	Per Hour	Per Day*	Per Week
100W (0.10kW)	£0.02 0.10kWh	£0.29 1.20kWh	£2.06 8.40kWh
250W (0.25kW)	£0.06 0.25kWh	£0.74 3.00kWh	£5.14 21.00kWh
500W (0.50kW)	£0.12 0.50kWh	£1.47 6.00kWh	£10.29 42.00kWh
750W (0.75kW)	£0.18 0.75kWh	£2.20 9.00kWh	£15.44 63.00kWh
1000W (1.00kW)	£0.24 1.00kWh	£2.94 12.00kWh	£20.58 84.00kWh
1500W (1.50kW)	£0.37 1.50kWh	£4.41 18.00kWh	£30.87 126.00kWh

*based on 12 hours a day.

Electricity costs are calculated using the UK: Price Cap (Oct 2024) electricity rate of £0.24 per kWh (incl. VAT).

Are dehumidifiers energy efficient?

Most dehumidifiers use refrigerated coils to extract water from the air by condensing excess moisture onto the coils, as they are very cold.

What may improve energy efficiency is having a Hydrophilic coating on the coils, this makes water run off more rapidly, making the water extraction and collection process faster within the dehumidifier. Closing windows and external doors, when using your dehumidifier, will help efficiency.

Features such as automatic shut-off's, timers and smart controllers may reduce energy consumption.

Compare dehumidifier prices