I guessed my own height as being around 5'4". My mom and I took my measurement once and we concluded I was around 5'5". Then I go to the doctor's office a year or so later, and they measure me as 5'3". Then the other day Merla asks me to get a box off of a high shelf and we get to talking and she says I can't be 5'3" because SHE'S 5'3" and that she thinks I'm about 5'5" because I look more than an inch taller than her.
........So I think I should just stick with my original guess of 5'4".