WattNoteElectric blanket electricity cost calculator — daily and seasonal
Your appliance’s estimated energy cost
What this estimate uses
Calculation method and limits
Watts ÷ 1000 × hours × days gives energy. Multiply per-cycle energy by cycles; annual energy is used directly. Monthly and daily averages divide the annual estimate by 12 and 365. Seasonal bills, changing fixed charges, tiers and time-of-use rates are not predicted. Maximum label watts may differ from average power.
Use the detailed calculator
Calculate with your own usage
Formula reviewed: 2026-09-19 · Inputs: your measurements or product labels, not an official tariff database.
Estimate electricity cost from average power and hours of use. Maximum rated power can differ from the average after temperature regulation.
Separate warm-up from normal use
Using warm-up power for an entire night may produce a poor estimate. Prefer measurements taken at your usual setting.
Enter your actual season
Reduce active months if the blanket is not used year-round. No calendar month is assumed to be summer or winter. Monthly averages include inactive months.
Illustrative calculation
60 average watts × 6 hours/day × 25 days/month × 4 months/year = 36 kWh/year. At an assumed rate of 0.2 currency units/kWh, this is 7.2 currency units/year. These are not product or tariff claims.
Check safety before cost
This tool cannot determine safe overnight use, temperature settings or product lifespan. Follow the product instructions; a low estimated energy cost is not a reason to keep using a damaged appliance.