Dehumidifier Energy Cost Calculator
Removes excess moisture from air to prevent mold and improve comfort.
Power Draw
500W
watts
Annual kWh
720
avg usage
Annual Cost
$94
avg national
CO₂/Year
0.51 tons
carbon impact
Dehumidifier Cost Calculator
Customize usage and your state's electricity rate for accurate cost estimates.
Daily Cost
$0.52
Monthly Cost
$7.80
Annual Cost
$94
Lifetime Cost
$749
Energy Saving Opportunities
Save up to 15% vs standard models
~$14/year savings
Smart scheduling saves 20% more energy
~$19/year savings
Energy Saving Tips
- ✓Set humidity to 45-50%
- ✓Empty tank or use continuous drain
- ✓Clean filter monthly
Compare Alternatives
| Appliance | Watts | Annual kWh | Annual Cost |
|---|---|---|---|
| Dehumidifier (current) | 500W | 720 | $94 |
| Whole-House Dehumidifier | 550W | 1,188 | $154 |
Dehumidifier Cost Summary
Dehumidifier Energy FAQ
Dehumidifier Running Cost by City (top 100)
Electricity rates vary by city, so the cost to run a dehumidifier does too. See your local cost:
Methodology & Energy Data Sources — Dehumidifier
How we calculate Dehumidifier energy costs: Our calculations use EIA (US Energy Information Administration) residential electricity price data, cross-referenced with ENERGY STAR appliance efficiency standards and DOE Appliance and Equipment Standards. Wattage values reflect nameplate ratings from manufacturer specifications, normalized by the ENERGY STAR Testing & Certification Program.
- Wattage (500W): Nameplate wattage from ENERGY STAR certified product database. Actual consumption may vary ±15% based on usage patterns and age of appliance.
- Annual kWh (720 kWh): Calculated as (Wattage × Avg Hours/Day × Avg Days/Year) ÷ 1,000. Usage hours based on RECS (Residential Energy Consumption Survey) typical usage patterns for HVAC equipment.
- Annual cost ($94): Calculated using EIA Form EIA-861M national residential average electricity rate. State-level rates sourced from EIA Electric Power Monthly (Table 5.6.A).
- Lifetime energy cost: Projects 720 kWh/year × 8-year lifespan, adjusted for 2.5% annual electricity price escalation per EIA Annual Energy Outlook baseline scenario.
- Carbon footprint (0.51 lbs CO₂/year): Uses EPA eGRID national average emission factor (0.386 kg CO₂e/kWh for 2023). Regional factors vary significantly — see EPA eGRID subregion data for local estimates.
- EIA Electric Power Monthly — residential electricity rates
- EIA Residential Energy Consumption Survey (RECS)
- ENERGY STAR Certified Products Database
- EPA eGRID — electricity emission factors
- DOE Appliance and Equipment Standards Program
Disclaimer: Energy cost estimates are based on national and state averages. Actual costs depend on your utility's rate structure, time-of-use pricing, demand charges, and actual usage patterns. Contact your utility for exact rates and consider a home energy audit for personalized recommendations.
Reviewed by Brazora Monk · Last updated 2026 · EIA data current as of latest Electric Power Monthly release
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