How much does an electric blanket cost per month in South Carolina?

About 49.8¢ a month, assuming 80 W at a 50% duty cycle, 8 hours a day, 120 days a year at 15.55¢/kWh.

How many kilowatt-hours does an electric blanket use?

Roughly 38 kWh a year under these assumptions, or 0.04 kWh for every hour it runs.

Is that expensive compared with other states?

South Carolina has the 21st cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $7.04 a year.

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Cost to run an electric blanket in South Carolina (June 2026 rates)

At 15.55¢ per kilowatt-hour — South Carolina's average residential price in June 2026 — running an electric blanket costs $5.97 a year. That is 15% less than the national average of $7.04. South Carolina's residential rate is up 5.1% from June 2025, which moves this appliance from $5.68 to $5.97 a year.

Per hour: 0.6¢
Per day of use: 5.0¢
Per month: 49.8¢
Per year: $5.97

Assumption: 80 W at a 50% duty cycle, 8 hours a day, 120 days a year — 38 kWh a year. Queen-size, medium setting, thermostatic. Use the calculator to swap in the numbers from your own model.

How South Carolina compares

South Carolina pays 15.55¢/kWh, the 21st cheapest residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $1.07 less a year than the typical U.S. household pays for the same use. Running the same electric blanket costs $5.03 a year in Nevada and $20.24 in Hawaii, so where you live changes this bill by $15.21 a year.

State	Rate	Per month	Per year
South Dakota	15.36¢	49.2¢	$5.90
West Virginia	15.45¢	49.4¢	$5.93
South Carolina	15.55¢	49.8¢	$5.97
Kansas	15.71¢	50.3¢	$6.03
Iowa	15.93¢	51.0¢	$6.12

States ranked by average residential price, cheapest first. See all 51 states for an electric blanket.

What else costs about the same in South Carolina

Vacuum cleaner$5.60 a year in SC Electric lawn mower$6.47 a year in SC Toaster$5.45 a year in SC

Cutting the number down

Heating the bed instead of the bedroom is one of the best ratios of comfort to kilowatt-hours in the house.
Preheating for 15 minutes and switching off at bedtime captures most of the benefit for a fraction of the runtime.

Questions

How much does an electric blanket cost per month in South Carolina?: About 49.8¢ a month, assuming 80 W at a 50% duty cycle, 8 hours a day, 120 days a year at 15.55¢/kWh.
How many kilowatt-hours does an electric blanket use?: Roughly 38 kWh a year under these assumptions, or 0.04 kWh for every hour it runs.
Is that expensive compared with other states?: South Carolina has the 21st cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $7.04 a year.