Dehumidifier running-cost calculator

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From electricity use to cost.

Estimated electricity cost

$12.00

for 30 entered use days

Energy in this period: 60 kWh
Cost per use day: $0.40
Energy per use day: 2 kWh
Cost per hour at entered power: $0.05

Your rate, your estimate

This assumes the entered electrical power is drawn throughout the entered use time. A nameplate rating may overstate average use when an appliance cycles.

How we calculate this

0.25 kW × 8 hours × 30 days = 60 kWh. × $0.20 per kWh = $12.00.

Measured mode divides the measured kWh by complete measurement days, then multiplies by your use days. Electricity only, at a constant entered rate. Fixed charges and other household costs are excluded.

Understand watts, time and cost

Before you calculate

Use input watts for the actual mode and conditions. Water-removal capacity in litres or pints per day is not electrical power.
Temperature, humidity, target setting and operating mode can affect electricity use and water removal.
Leaving a unit enabled for 24 hours does not establish that it draws rated power for all 24 hours. Measured kWh includes cycling.
Measured mode projects your completed-day average. A wet initial drying period may not represent later maintenance use.
The tool prices energy; it does not size a dehumidifier or diagnose the cause of damp.

Replace every sample figure with one appropriate to your appliance and household.

Sources and product documents

Reading Municipal Light Department: Electricity use and bill calculationsReference checked 2026-10-01
ENERGY STAR: Dehumidifier efficiency and operating conditionsReference checked 2026-10-01
Meaco: Compressor and desiccant operating conditionsReference checked 2026-10-01

From electricity use to cost.

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