Running-cost calculator
Dehumidifier running-cost calculator
Build an electricity scenario with your own tariff and running-time assumptions. The starting values are an example, not typical-use measurements.
The interactive tool needs JavaScript. The method and reference guidance remain available below.
Scenario estimate
Your calculation appears here
Change the inputs, then calculate.
The calculation, without hidden assumptions
kWh = watts ÷ 1,000 × hours per day × days.
Cost = kWh × your price per kWh.
At 350 W, eight hours a day and 30 days, the energy scenario is 84 kWh. At an assumed $0.20/kWh, that is $16.80. These are illustrative inputs. They are not a current electricity tariff, a measured product result or a promise of your bill.
This calculation does not add separate fan-only or standby use. Cycling can change time spent at the stated power. For an appliance you already own, total kWh measured over a known interval is a better basis for that interval’s cost; extrapolating to another season still requires assumptions.
Why this is not an efficiency ranking
Two machines can use different watts and take different amounts of time to do the same job. Equal hours at their nameplate values do not establish equal moisture removal. Integrated Energy Factor provides a standardized comparison, but it is not a home-specific electricity forecast.
Read the running-cost guide for worked model scenarios and the limits of wattage comparisons.
Sources and evidence
Checked October 31, 2026. Manufacturer specifications and standardized records are not our own performance measurements.