Oh, I don't know by heart. (I usually just look at the tag of my pants when I go shopping). But I have a really skinny width and long legs. Also, pants are nearly impossible to find in stores for me. I usually have to get pants online.
believe me i know it. i'd recommend stores but idk what kind of pants you prefer; if you like feminine stores, i'd say delias or some such (33-35") but for masculine pants, idk