Dehumidifier electricity cost in United Kingdom

Damp weather, laundry drying, room temperature, and target humidity all affect how long a dehumidifier’s compressor or desiccant heater runs.

Rate used for the starting scenarioGBP 0.2611/kWh

Use your current electricity unit rate and model Economy 7 or time-of-use operation only for the hours billed at that price.

Billing scopeGreat Britain

Confidence A 99/100. Effective 2026-07-01 to 2026-09-30.

Check official source ↗

Live local scenario

Calculate with an editable rate.

Like an air conditioner, a compressor dehumidifier cycles as the target humidity is reached. Damp conditions, room leakage, and set point determine active runtime.

01

Your scenario

Change any value. Results update instantly.

Active runtime accounts for cycling. Use 100% for devices that draw the rated power continuously.

02

Your reading

Planning range · based on your inputs
Estimated monthly cost£21.38

Likely planning range £17.53–£25.23

Per day£0.70
Per active hour£0.07
Per year£256.61
Energy / month81.9 kWh

FormulakW × runtime × tariff

Month52 weeks ÷ 12

Data qualitySelf-entered estimate

Transparent method

The local calculation

Cost = compressor kW × scheduled hours × duty cycle × tariff

The device model stays global. The currency, tariff scope, validity period, and billing cautions come from the United Kingdom data layer.

Read the methodology →

Before trusting the result

Three checks for United Kingdom

01

Distinguish compressor and desiccant models.

02

Reduce duty cycle after the room reaches its target humidity.

03

Measure multi-day use when laundry or weather causes large swings.

Turn estimates into evidence

Measured this device in United Kingdom?

The calculator accepts anonymous smart-plug, meter, charger, or utility readings after the result. A real measurement improves the country-device cohort without exposing your name or exact address.

Contribute a real reading