100-Watt vs 120-Watt Electric Throw Blanket: Running Cost Compared
A 120-watt electric throw blanket costs $0.315 more per month than a 100-watt electric throw blanket ($3.83 per year), assuming 3 hours a day at $0.175/kWh. Per hour the difference is $0.004.
Side by side
| 100-watt Electric Throw Blanket | 120-watt Electric Throw Blanket | |
|---|---|---|
| Power | 100 W | 120 W |
| Hours per day | 3 | 3 |
| Cost per hour | $0.018 | $0.021 |
| Cost per day | $0.053 | $0.063 |
| Cost per week | $0.368 | $0.441 |
| Cost per month | $1.58 | $1.89 |
| Cost per year | $19.16 | $23.00 |
| Energy per year | 110 kWh | 131 kWh |
Based on $0.175 per kWh (US average).
Which should you choose?
Higher wattage does not always mean more heat or output per dollar, and it does not always mean it runs longer. A bigger unit may reach the target temperature faster and then cycle off. Compare size to your room or job before you decide.
Want your own numbers? Open either calculator and enter your hours and rate: 100-watt Electric Throw Blanket or 120-watt Electric Throw Blanket.