Air conditioner (central) Electricity Cost in Illinois — $44.17/month (2026)
Illinois monthly
$44.17
U.S. average monthly
$48.54
Difference
-$4.37
← Air conditioner (central) (all states) · Illinois electricity rate
Quick rate
Daily cost
$1.47
Monthly cost
$44.17
+$0.00 vs typical
Yearly cost
$537.43
kWh / month
270.0 kWh
Local monthly estimate: $44.17 · U.S. average equivalent: $48.54
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ad-after-calculator Quick answer
Running a typical air conditioner (central) in Illinois costs about $1.47/day or $44.17/month at roughly $0.164/kWh, assuming 6 hours of use per day at 1500 W. The U.S. average rate is about $0.180/kWh, so Illinois is roughly 9% lower than average for this estimate.
vs U.S. average
Local rate (Illinois)
$0.164/kWh
Monthly estimate: $44.17
U.S. average rate
$0.180/kWh
Monthly estimate: $48.54
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ad-after-state-table FAQ
- Most air conditioner (central) units fall between 750 W and 3000 W, with 1500 W as a typical value for estimates.
- Our calculator uses 1500 W as the typical wattage, within a reported range of 750–3000 W.
- At 6 hours/day and 1500 W, the estimate is about 9.00 kWh per day.
- Using 6 hours/day, the estimate is about 270.0 kWh per month.
- Per hour, air conditioner (central) uses about 1.500 kWh (at 1500 W).
- At typical use (1500 W and 6 hours/day), the estimate is about $1.47/day at roughly $0.164/kWh.
- At typical use (1500 W and 6 hours/day), the estimate is about $44.17/month at roughly $0.164/kWh.
- Running for one hour at 1500 W costs about $0.245 per hour (using the Illinois rate of about $0.164/kWh).
- For typical use, the calculator estimates about $44.17/month for air conditioner (central) in Illinois.
- At the typical Illinois residential rate, the estimate is about 270.0 kWh per month, which corresponds to roughly $44.17/month for air conditioner (central).
- Compared to the U.S. average, Illinois is about 9% lower for this estimate. Monthly cost is about $44.17 in Illinois vs $48.54 at the national average.
- Start with practical steps from our tips list (e.g., Seal air leaks and improve insulation to reduce run-time.). Smaller changes reduce kWh usage, which reduces the bill at your local rate.
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How many kWh does a air conditioner (central) use per day in Illinois?
How many kWh does a air conditioner (central) use per month in Illinois?
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How much does it cost to run a air conditioner (central) per hour in Illinois?
What is the air conditioner (central) electricity cost per month in Illinois?
How much does air conditioner (central) add to my electric bill in Illinois?
What is the impact on electric bill of air conditioner (central) in Illinois?
How to reduce air conditioner (central) electricity cost in Illinois?
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Est. monthly at Illinois rate ($0.164/kWh)