Doesn't appear anyone knows the answer to this. Grab a set of metric and SAE closed end wrenches and head under. Once you do it the first time, right it down on your oil change log. I write it down at the top, right next to the oil filter numbers so I don't have to look them up anymore.
Recognizing that each vehicle can be different and these are only reference points.....my vehicles are 13mm, 14mm, 15mm, and 15mm