I've been using a chart made by crystar for quiet a few years for armor plates. But since the number of plates has grown in the last 4 years I've updated his chart.

Here is a link to the updated spreadsheet chart: Google Docs Excel doc

Here is the same document in PDF form in case that's easier for you: PDF Version

I hope this helps anyone who is looking at armor plates and wants to decide which ones to buy. Enjoy!