Cost to run a space heater
Short answer
Running a space heater (~1500W, ~5 hrs/day) costs about $1.26/day, $38/month, or $460/year at the U.S. average of 16.8¢/kWh.
Wattage
1500 W
Per day
$1.26
Per month
$38
Per year
$460
Figures assume ~1500W for ~5 hours a day at the U.S. average 16.8¢/kWh. Your state's rate and your real usage change the total — enter both in the calculator.
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Frequently asked questions
How much does it cost to run a space heater?
About $1.26 per day, $38 per month, or $460 per year at the U.S. average of 16.8¢/kWh, assuming ~1500W for ~5 hours a day.
How many watts does a space heater use?
A typical space heater draws about 1500 watts when running. Your model may differ — check its label or a plug-in power meter and enter the real number in the calculator.
How can I cut the cost of running a space heater?
Run it less, use a more efficient model, and check whether your utility offers cheaper off-peak (time-of-use) rates. Costs also vary 4× by state, so your local rate matters a lot.