A hair straightening iron uses
approximately 37 to 75 watts; on average, it operates for about 7 hours a
day.
Enter the number of usage hours and power setting (in wattage), then click "Calculate"
to find the power consumption
of hair straightening iron using 75 watts for 7 hours
a day at $0.12 per kWh. You will also see the running cost per hour, day, week, and year.