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How much does it cost to run an electric blanket?

At the U.S. average residential price of 18.31¢ per kilowatt-hour (July 2026), running an electric blanket costs about $7.03 a year. Your own bill depends on your state's rate, which ranges from 12.72¢ to 48.00¢ across the country.

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.

Cost by state

Same appliance, same usage, 51 different prices. Sorted cheapest first.

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 many watts does an electric blanket use?

About 80 W while running, though it cycles on and off, so average draw is 40 W.

How much does an electric blanket cost per month?

About 58.6¢ a month at the U.S. average rate, or $7.03 a year.

Where is it cheapest to run?

Louisiana, at $4.88 a year, versus $18.43 in Hawaii — a spread of $13.55.