A fax machine uses
approximately 5 to 10 watts; on average, it operates for about 2 hours a
day.
Enter the number of usage hours and power setting (in wattage), then click "Calculate"
to find the power consumption
of fax machine using 10 watts for 2 hours
a day at $0.12 per kWh. You will also see the running cost per hour, day, week, and year.