This question is an exact duplicate of:
Surely, as a newbie here at SE, I have missed something.
The title will display "Title cannot be longer than 150 characters" if it is too long, but no indication of the actual length.
My usual approach is to create in a word processor and then copy/paste.
If my title is too long, I will edit in the title box, removing unessential words, until it is the correct length, but see no display to help here at SE.
I suppose I could check the length of the title in my word processor, but am I missing something?
The body box lets me know how many characters are left, that's what I am looking for here...