dehumidifier electricity cost

What it can cost to leave a dehumidifier on

kWh and euros from watts, hours and the unit price on your own bill. No invented tariffs.

You want to know what leaving a dehumidifier on can cost, at your tariff.

Read watts from the rating plate or the “dehumidify” mode in the manual. If missing, use a plug-in meter — do not guess.
Enter your €/kWh from the bill.
The result is linear: watts × hours × price. It ignores filter wear and noise.

kWh / giorno

2.00

Estimate € / day

€ 0.60

Estimate € / month (30 d)

€ 18

Linear estimate: about € 0.60 per day and € 18 over 30 days, with the watts and €/kWh you entered. No official tariff is baked in: if the unit price is wrong, the result is wrong.

IgroCasa does not publish live energy tariffs. You enter the price so the page stays evergreen.

Useful next step

If the cost is high, cut hours, remove vapour at source (extractor, laundry) or revisit sizing.

Dehumidifier sizing estimate Guided damp diagnosis Dehumidifier electricity use: estimate it from your bill Dehumidifier: when it actually helps (and when it is wasted money)

What may help (after diagnosis)

No affiliate link is live. Products below are categories, not model reviews.

80–350 €

Compressor dehumidifier

Useful if indoor air sits above ~60–65% and the cause is indoor vapour (showers, cooking, laundry), not a wall wet from below.

When: Measured high RH, window condensation, indoor drying, windowless bath.

Not when: Rising damp, leaks, stains that start at the skirting and climb.

Affiliate link not connected — a category, not a model review.

40–180 €

Bathroom extractor with humidistat

In a windowless bathroom this often beats a portable dehumidifier: it removes vapour at the source.

When: Bathroom mould, daily showers, poor air change.

Not when: It will not fix a thermal bridge in a bedroom.

Affiliate link not connected — a category, not a model review.

FAQ

Why don’t you bake in a kWh price?+

Because it changes and goes stale. You read it on the bill: the page stays evergreen and honest.