That metering plugin I always mention does just these types of things.
It let's you know the dynamic range, RMS, and the average of the ranges .. so you know if your mix is dynamic or 'Hot' .. and the average RMS (or RMS at any given point) so you know relative 'real' loudness .. etc.

There's a method to my madness..


I do not work here, but the benefits are still awesome
Make your sound your own!