I know there is an “easy” way to convert C to F and vice versa but my brain seems to forget it the moment it stops seeing the equation. In any case, I’ve figured out that high-10s is mid-60s, high-20s is around mid-80s and 38 is 100. I doubt I’ll encounter anything under that but, obviously, 0 is 32. While I do get that some peeps think that F temperatures make “more sense” for the human body (e.g. 100 is about body temperature) but nope.