Calculate your cost
Start with the example below, then replace the wattage, daily runtime, and rate with the numbers for your electric blanket.
This setup uses about 24 kWh in a 30-day month.
Please enter valid values within the ranges shown.
| Schedule | Hours/day | Cost/month |
|---|---|---|
| Half runtime | 4 | $2.26 |
| Page example | 8 | $4.52 |
| Longer runtime | 12 | $6.78 |
Same 100-watt input and 18.83¢/kWh rate; only runtime changes.
Formula for the page example
0.1 kW × 8 hr × $0.1883 = $0.15 per day
Convert watts to kilowatts, multiply by the active hours used each day, then multiply by the electricity price in dollars per kWh. Multiply the daily result by 30 for the monthly estimate shown above.
How to read this estimate
An electric blanket delivers warmth directly to you rather than heating the entire room. Because it uses very little wattage, it is one of the cheapest ways to stay warm through the night.
Use this as a baseline until you can check the label or measure the electric blanket directly. Model, settings, condition, climate, and household routine can all change the result.
What changes the cost?
- 01
Heat setting and number of hours used
- 02
Size of the blanket and number of heating zones
- 03
Room temperature and insulation of the blanket
Ways to spend less
- Preheat the bed on high, then turn it down or off when you get in.
- Use it instead of raising the home's central thermostat overnight.
- Use a timer to shut it off automatically after you fall asleep.