Illinois kWh cost

Illinois kWh cost calculator

Fast Illinois electricity estimates using EIA residential-rate defaults, editable kWh assumptions, and clear links back to the full WattNomic calculators.

Fast answer

Illinois kWh cost is price times usage.

At 17.83 cents per kWh, every 100 kWh in Illinois costs about $18 before fixed charges, taxes, and utility-specific riders.

Illinois: 17.83 cents/kWhRank #17 by state/DC rateSource: EIA February 2026 Reviewed: May 2026

Illinois bill examples

$122600 kWh month plus a $15 fixed charge
$175900 kWh month plus a $15 fixed charge
$2291,200 kWh month plus a $15 fixed charge

Use the calculator

Replace the state default with the rate and fixed charges from your own utility bill for a better answer.

Calculate a Illinois electric bill Check if a bill is normal Open Illinois rate hub

Estimate your Illinois monthly cost

Source: U.S. Energy Information Administration, Electric Power Monthly, Table 5.6.A (February 2026). Replace defaults with your utility bill before making a purchase decision.

Related Illinois checks

Average electric billaverage monthly electric bill Is my bill normal?electric bill normality check Cost per kWhstate electricity rate

High-rate comparisons

Hawaii kwh cost California kwh cost Maine kwh cost Connecticut kwh cost

Common questions

What is the kwh cost in Illinois?

Illinois's current WattNomic default is 17.83 cents per kWh from EIA's February 2026 table. Monthly bills also depend on usage, fixed fees, taxes, and utility-specific riders.

How do I estimate a Illinois electric bill by kWh?

Multiply monthly kWh by Illinois's cents per kWh, divide by 100, then add fixed monthly charges. Replace the state average with your exact utility bill when available.

Is the Illinois electricity rate the same as my utility rate?

No. The Illinois page uses a state-level EIA average for screening. Your utility supply, delivery, time-of-use plan, taxes, and fixed fees can be different.