Space heater Electricity Cost in Illinois — $44.17/month (2026)
Illinois monthly
$44.17
U.S. average monthly
$48.54
Difference
-$4.37
← Space heater (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
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ad-after-calculator Quick answer
Running a typical space heater 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 space heater units fall between 750 W and 1500 W, with 1500 W as a typical value for estimates.
- Our calculator uses 1500 W as the typical wattage, within a reported range of 750–1500 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, space heater 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 space heater 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 space heater.
- 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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Est. monthly at Illinois rate ($0.164/kWh)