Power Consumption Of A Laptop
Power Consumption Of A LaptopA laptop uses approximately 70 watts, on an average, a macbook is used
approximately 3 hours a day.
Enter the number of
usage hours, power setting (in wattage) and click calculate to find the power consumption
of macbook using 70 watts
for 3 hours a day @ $0.12 per kWh. Also know running
cost per hour, day, week and for a year.
If you still need some help in getting exact electricity usage of the devices, here is kuman electricity usage monitor that gives some ideas as to what device or appliance you may want to closely watch. And it is advised to get voltage meter as a pack of 4.
How Many Watts Does A Laptop Use?
If you wish to discover the actual power consumption of the laptop that you have obtained, you must first take a quick peek at the label located at the bottom or the back of the device or appliance.
The electrical ratings will usually be stamped on the label itself, in terms of either Watts (W) or Voltage (V) and Amperage (A).
You can then determine the heater wattage using a simple formula of:
Watts (W) = Volts (V) x Amps (A).
To calculate the consumption of an electrical appliance in kWh, you have to take into account two factors:
- The capacity of your electrical appliance expressed in watt.
- The number of hours that the appliance is in use in one day.