Why I got two heights towards and against wall?

Days ago I purchased a wooden triangle ruler to self measure my height.

But it's strange..

I measured my height face towards the wall and back against the wall,but the former as 161.5cm-161.6cm and the latter as 161.8 both in the evening (that's exact height measured also in my Grade Two of senior high school two yrs ago in evening PE lesson medical and I'm not lying on the bed listening to lessons before it).

Generally speaking,height towards wall will be taller cuz rather than against wall,you can't straight up your back in addition to missing your head top point like your towards wall can so that's why u tend to measure a lower height if u back up wall.

But my situation is totally opposite for no reason.Maybe bc my skull shape is too sharp?

My mom used a straight ruler to measure my height against the wall as 163cm in the evening two months ago and I guaranteed daily normal outdoors activities.

0.2 cm is not even a difference worth mentioning or losing time thinking about it.

You always get a more accurate measurement with your back against the wall because leaning against the wall will ensure you're standing upright. Any slant in your stance will reduce your height.

Quote from: SirStretchAlot on August 26, 2021, 07:32:11 PMYou always get a more accurate measurement with your back against the wall because leaning against the wall will ensure you're standing upright. Any slant in your stance will reduce your height.

The same opinion as mine.I can examine which is my true height in graduation army enrollment medical.

Quote from: Body Builder on August 26, 2021, 12:23:14 PM0.2 cm is not even a difference worth mentioning or losing time thinking about it.

I execrated decimals and I will get sick if after surgery,I were 174.5-174.8 tall or so.175 is a gold number for me.