Hello, I'm new to this forum, and as you can tell by my name, I'm a dope about electrical topics.

My question is about my computer work area. I currently have a PC, monitor, scanner, printer, cordless phone, speakers, shredder, and radio all plugged into a single power bar. No problems. I'm pretty sure the outlet is only 15 amps, so I'm wondering if I'm pushing my luck. Is there a simple calculation I can do to determine if I'm approaching the maximum load? For example, can I just add all the amp ratings of the components to see if it's over 15? It so, I still the problem where some components give a wattage and some give amps only, and some don't give either.

Help please?