ComEd (Commonwealth Edison) Electricity Cost Calculator

Pre-filled with ComEd (Commonwealth Edison)'s approximate average residential rate for Northern Illinois, including Chicago — adjust to match your actual bill's rate for precision.

⏱ ~10 sec📍 Northern Illinois, including Chicago🔒 No signup

Result

$0.41/day
Daily cost
Monthly$12.24
Yearly$148.92

ComEd offers an hourly pricing option in addition to standard fixed rates — hourly customers can see meaningfully different costs depending on usage timing.

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About ComEd (Commonwealth Edison)'s residential rates

Daily cost = (Watts ÷ 1000) × Hours/day × Rate per kWh

ComEd (Commonwealth Edison) serves Northern Illinois, including Chicago, and its approximate average residential rate shown here is a planning estimate — actual bills depend on your specific rate plan, tier, time-of-use schedule, and any seasonal adjustments. For your exact current rate, check a recent bill rather than relying on any published average, including this one.

Once you know your real rate, run it through our full electricity cost calculator for any specific appliance, or the kWh usage from bill calculator if you want to reverse-engineer your monthly usage from a total bill amount.

Frequently asked questions

Is ComEd (Commonwealth Edison)'s rate the same for everyone in its service area?

No — most utilities including ComEd (Commonwealth Edison) offer multiple rate plans (tiered, time-of-use, flat) and rates can vary by usage level or time of day, so this is an approximate average, not a guaranteed figure for every account.

How often does ComEd (Commonwealth Edison) change its rates?

Utility rates typically adjust periodically based on regulatory filings, fuel costs, and infrastructure investment — checking a recent bill is always more accurate than relying on a fixed published number.

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