Nope, not at all.
You would think that with the semi-standard size increments for the O.D. and center pin that the size would correspond to the voltage or current, but it doesn't. Even the polarity isn't ubiquitous, with some vendors preferring that their device blow up rather than lose a power brick sale to a generic product. (Yes, the insertion detection contact sometimes influences the polarity decisions, but most "reversed" devices don't have internal batteries to disconnect.)
USB is a huge win as a power supply connection because the voltage and polarity are standardized, not at the whim of a marketing department.