Appliances

Dehumidifier Running Cost Calculator

Dehumidifiers are modest in power but often run for hours. Enter the wattage and usage to see the running cost.

Your details

W

Compressor models ~150–700 W; desiccant types higher.

h
days
$ /kWh

Results

Energy used per year
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Cost per month
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Cost per year
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Last updated June 30, 2026. Results update automatically as you type.

How it works

Daily energy = watts ÷ 1000 × hours per day. Yearly energy = daily × days used per year. Yearly cost = energy × rate; monthly = yearly ÷ 12. Using a humidistat so it only runs when needed avoids a lot of waste.

Frequently asked questions

Are dehumidifiers expensive to run?

Usually moderate — most use less power than a heater. Cost depends mainly on how many hours a day it runs.

Compressor or desiccant?

Compressor models are more efficient in warm rooms; desiccant models work better in cold spaces but use more power.

How do I reduce running time?

Set a target humidity (around 50%) on the humidistat, fix sources of damp, and ventilate so the unit cycles off sooner.

These calculators provide general estimates for educational purposes only and are not financial advice. Real-world results depend on factors not captured here. Verify figures independently before making any purchase or financial decision.

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