How many watts does a computer base unit use

[pen]

Hello,
Please can you help me I would like to the my electricty consumption in Watts for the following items:-
Desk Top computer
Base unit
Screen 14"
Scree 17"
Mouse
Keyboard
Answermachine
Two phones charged up and in use for 7dys a week ongoing.
my computer etc is a Deak Top Acerx3200
Thanks for you help
Anne

 

[Ubrales]

Here are the specs for this computer: http://support.acer.com/acerpanam/desktop/2010/acer/Aspire/AspireX3200/AspireX3200sp5.shtml

The power supply is 220 Watts. Computers do not run at full rated watts. So allow a max of about 180 watts for the computer. The monitor (LCD/LED) are normally around 50 watts for the 17" screen; maybe even less. The keyboard and mouse power is included in the computer power.

The answering machine plus the 2 phones would be about 25 watts total.

This entire system as described would consume around 250 watts at peak; a lot less at idle (but ON).

 

[CompTIA_Rep]

You could also buy a killawatt meter, or calculate yourself (for the PC).
http://www.p3international.com/products/special/p4400/p4400-ce.html
http://www.extreme.outervision.com/psucalculatorlite.jsp