Electric Blanket cost calculator
Find it on the label.
Use the price from your bill if you know it.
Cost to run this device
Cost = watts divided by 1,000, times hours, times your price per kWh. It covers energy only, not the cost of buying the device.
Typical draw
150 W
Range 50 to 250 W
Hours a day
6
Assumed day of use
Energy a month
27 kWh
0.90 kWh a day
Cost a month
$4.72
At 17.23 cents per kWh
What an electric blanket costs to run
| Period | Energy | Cost |
|---|---|---|
| One hour of running | 0.15 kWh | 2.59 cents |
| One day (6 hours) | 0.90 kWh | $0.16 |
| One month (30.4 days) | 27 kWh | $4.72 |
| One year (5 months of use) | 137 kWh | $24 |
Source: Planning watts of 150 and 6 hours a day, hours of use a night, including time the controller cycles off. Price: 17.23 cents per kWh, the 2025 US residential average from EIA Form EIA-861.
The monthly cost is 3% of the $150.68 average US electric bill. Because it runs only about 5 months a year, the yearly cost is 5 times the monthly figure, not twelve.
Three real-life cases
One figure cannot fit every home. These three cases show how much the answer moves with the equipment and the hours.
| Case | Watts | Hours a day | kWh a month | Cost a month |
|---|---|---|---|---|
| Pre-heat the bed for an hour | 150 | 1 | 5 | $0.79 |
| On low overnight | 80 | 8 | 19 | $3.35 |
| On high all night | 200 | 8 | 49 | $8.38 |
The lowest case costs $1 a month and the highest $8. Use the calculator above to match your own.
What it costs in other states
The same electric blanket costs different amounts depending on the state, because the price per kWh differs. Here are the three cheapest states, the US average and the three costliest, for the same 27 kWh a month.
| Place | Cents per kWh | Cost a month |
|---|---|---|
| North Dakota | 11.82 | $3.23 |
| Idaho | 11.83 | $3.24 |
| Nebraska | 12.05 | $3.30 |
| United States average | 17.23 | $4.72 |
| Hawaii | 40.40 | $11.05 |
| California | 31.35 | $8.58 |
| Massachusetts | 30.41 | $8.32 |
Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data). Price is residential revenue divided by sales and includes fixed charges.
See electricity rates in every state to find your own.
How an electric blanket uses electricity
An electric blanket is a resistance heater in the form of wires in fabric. Its controller cycles the wires on and off to hold a setting, so the average draw is lower than the rating on the label, and a lower setting cuts it further.
Size and setting matter most. A twin blanket uses less than a king, and the high setting uses more than the low one. Pre-heating the bed and then turning the blanket off before you sleep uses the least.
The range for this kind of appliance runs from about 50 to 250 watts. At 6 hours a day that is $2 to $8 a month, which is why checking the label on yours is worth the minute.
Ways to cut the cost of an electric blanket
- Pre-heat the bed for a short time and switch the blanket off when you get in, if the manufacturer allows it.
- Use the low setting overnight instead of the high one.
- Replace a blanket that is frayed or has damaged wires, and follow the maker’s safety instructions.
Next step: Space heater costs. For general ideas, read how to lower your electric bill.
Other appliances in the heating group: Space Heater, Electric Furnace, Baseboard Heater, Heat Pump, Electric Fireplace.
How we got these numbers
The cost is watts divided by 1,000, times hours, times your price per kWh. The 150 watts is a planning figure for this kind of appliance, set from typical product ratings, and the 6 hours is an assumed day of use. Neither is copied from a federal table. Federal guidance describes the method and warns that real wattage varies, so we publish our own typical ranges and label them as such. Prices come from EIA Form EIA-861 for 2025.
The calculation is the standard one used in the U.S. Department of Energy's consumer guidance on estimating appliance energy use. Wattage varies by product age and features, so the label on your own appliance beats any average. Read more in our methodology.
Electric Blanket cost questions
Is an electric blanket cheaper than heating the bedroom?
Often, if it lets you lower the thermostat. A blanket heats you, not the room, and it draws far less than a space heater or a furnace.
How much does an electric blanket cost to run all night?
At about 100 watts on average for 8 hours, it uses 0.8 kWh. Multiply by your price per kWh. It is typically a few cents.
How much does an electric blanket cost to run per hour?
At 150 watts and the 2025 US average price of 17.23 cents per kWh, about 2.59 cents an hour. Use your own price to get your own figure.
How many kWh does an electric blanket use in a month?
About 27 kWh for 6 hours of use a day over 30.4 days at 150 watts. A different wattage or schedule changes the total in proportion.