Dehumidifier Run Cost Calculator
Quickly budget the electricity cost of running a dehumidifier. Provide the unit's watt draw and hours of operation per day; optional electricity rate and days per month default to $0.14/kWh and 30 days for a typical billing cycle.
Estimates only. Actual bills vary with duty cycle, humidity load, and tiered electricity pricing.
Examples
- 650 W unit, 10 hours/day, $0.14/kWh, 30 days ⇒ Daily energy use: 6.50 kWh • Daily cost: $0.91 • Monthly energy use: 195 kWh • Monthly cost: $27.30.
- 480 W unit, 6 hours/day, rate blank (defaults $0.14), 31 days ⇒ Daily energy use: 2.88 kWh • Daily cost: $0.40 • Monthly energy use: 89 kWh • Monthly cost: $12.46.
FAQ
How do I find wattage?
Check the nameplate on the unit or read active power from a plug-in meter. Use running wattage rather than startup surge for accurate cost estimates.
Does Energy Factor matter?
This calculator focuses on electricity cost. Higher Energy Factor units remove more moisture per kWh, so you can combine these results with your target pints per day to compare efficiency.
What about standby mode?
Standby draw is typically small; include it by increasing the hours per day if your unit keeps fans or heaters on between cycles.
Additional Information
- Assumes steady-state power draw; real usage may cycle lower if the compressor or fan idles after reaching the humidity setpoint.
- Defaults help approximate utility bills when you don't know the exact tariff; override with your actual rate for precision.
- Results format in USD with two decimals and kWh rounded to two decimals for quick comparisons.