Air Purifier Electricity Calculator in Illinois
A air purifier in Illinois costs about $2.46 a month ($29.89 a year) to run at the state's average rate of 20.47 ¢/kWh. Use this calculator to compare light, typical, and heavy use.
Key metrics
| Metric | Value |
|---|---|
| Illinois average rate | 20.47 ¢/kWh |
| Assumed wattage | 50 W |
| Typical usage pattern | 8 hours/day |
| Typical monthly cost | $2.46 |
| Typical yearly cost | $29.89 |
Air Purifier in Illinois vs U.S. benchmark
Calculator assumptions
This calculator uses a typical wattage range of 25-100 W, and we assume 50 watts for 8 hours/day. The formula is kWh = (watts × hours) / 1000.
At this profile, the appliance uses 12.0 kWh per month and 146.0 kWh per year.
Appliance calculator scenarios
| Scenario | Hours/day | Annual energy | Illinois monthly | U.S. monthly | Illinois yearly |
|---|---|---|---|---|---|
| Light usage | 4 hours/day | 73.0 kWh | $1.23 | $1.16 | $14.94 |
| Typical usage | 8 hours/day | 146.0 kWh | $2.46 | $2.32 | $29.89 |
| Heavy usage | 12 hours/day | 219.0 kWh | $3.68 | $3.48 | $44.83 |
Appliance cost reference page
Want the full write-up? The appliance page below uses the same rate and wattage assumptions:
More comparison links
Browse related comparisons from the energy comparison hub:
City electricity context for Illinois
City electricity pages add local rate context. They don't change the statewide math here.
- Chicago electricity context - 21.29 ¢/kWh; est. monthly appliance profile cost $2.55
- Aurora electricity context - 20.47 ¢/kWh; est. monthly appliance profile cost $2.46
Compare electricity options in Illinois
Compare retail electricity plans and provider options available in Illinois.
Track Illinois electricity changes
Get notified about 12 kWh rate changes and savings opportunities in Illinois.
Other appliance calculators in Illinois
- Refrigerator calculator — Model refrigerator electricity cost in Illinois at 20.47 ¢/kWh.
- Space Heater calculator — Model space heater electricity cost in Illinois at 20.47 ¢/kWh.
- Window AC calculator — Model window ac electricity cost in Illinois at 20.47 ¢/kWh.
- Portable AC calculator — Model portable ac electricity cost in Illinois at 20.47 ¢/kWh.
- Central AC calculator — Model central ac electricity cost in Illinois at 20.47 ¢/kWh.
- Clothes Dryer calculator — Model clothes dryer electricity cost in Illinois at 20.47 ¢/kWh.
- Washing Machine calculator — Model washing machine electricity cost in Illinois at 20.47 ¢/kWh.
- Dishwasher calculator — Model dishwasher electricity cost in Illinois at 20.47 ¢/kWh.
State cost and bill pathways for Illinois
- Illinois electricity price per kWh — What a kWh of electricity costs in Illinois
- Illinois electricity rates & prices — Core authority page with statewide pricing context
- Illinois electricity cost analysis — State-level cost, affordability, and value overview
- Chicago electricity estimate (Illinois) — City electricity page with methodology notes where city coverage is available
- Average electricity bill in Illinois — What a typical monthly bill looks like
- Illinois household bill estimator — Estimate your bill from your monthly usage
Historical and trend pages
- Illinois electricity price history — Historical context and trend interpretation
- Electricity inflation in Illinois — State electricity inflation analysis
- Illinois electricity price volatility — Volatility and rate movement profile
Fixed-usage and calculator pathways
- Electricity cost for 100 kWh in Illinois — Cost for this usage amount in the same state
- Electricity cost for 300 kWh in Illinois — Cost for this usage amount in the same state
- Electricity cost for 500 kWh in Illinois — Cost for this usage amount in the same state
- Illinois electricity cost calculator — Custom kWh and scenario cost calculation
Appliance and estimator pathways
- Refrigerator cost in Illinois — Appliance operating-cost page for this state
- Refrigerator calculator in Illinois — Calculator page for adjusting wattage and usage for this appliance
- Space Heater cost in Illinois — Appliance operating-cost page for this state
- Space Heater calculator in Illinois — Calculator page for adjusting wattage and usage for this appliance
- Window Ac cost in Illinois — Appliance operating-cost page for this state
- Window Ac calculator in Illinois — Calculator page for adjusting wattage and usage for this appliance
State comparison pathways for Illinois
- Illinois electricity comparisons — State-to-state comparison hub
- Illinois vs California electricity cost — Head-to-head comparison page
- Illinois vs Florida electricity cost — Head-to-head comparison page
Discovery and navigation hubs
- Illinois electricity hub — Guide to this state's electricity rate, usage, comparison, and tool pages
- Electricity cost scenario hub — Entry point for residential and industry scenario pages
- Illinois electricity cost overview — State-level electricity cost page with rates and typical bill context
- Illinois average electricity bill benchmark — Typical monthly bill estimate using a standard household usage assumption
- Illinois electricity bill estimator — Household profile bill scenarios for this state
- Electricity usage hubs — Browse cost pages by common household usage tiers
Consumer electricity drivers
- Price drivers in Illinois — Understand what influences state electricity prices
Source & Method
Source: U.S. Energy Information Administration (EIA) Retail Sales of Electricity. Updated: April 2026. Estimates use the EIA all-in average residential rate — energy, delivery, fixed charges, and utility fees together, not just the electricity itself. Fees are inside the rate, not an extra on top; how your own bill splits fixed versus per-kWh charges varies by utility. For what's inside the all-in rate, see hidden electricity fees; for how rates and estimates are defined, see the methodology hub.