How to measure height accurately?

Sounds interesting but like a proper attempt. I've used to measure my height by facing a wall with my back and putting some kind of rectangle on top of my head (a thick book or so) and mark it there with a pencil before measuring it. So it's basically the same technique.

Been told thats a very inaccurate way of doing it. Not sure about my method though because i heard the joints stretch when you're lying down?

I've tried the really amateur ways of doing it and I keep getting 171cm when I'm I'm taller than my 173cm friend so I'm obviously doing it the wrong way.

Who the **** measures their height in centimeters anyway?

I've tried the really amateur ways of doing it and I keep getting 171cm when I'm I'm taller than my 173cm friend so I'm obviously doing it the wrong way.

Or perhaps the more obvious conclusion is that your friend isn't really 173?

Well that's the only thing I'm certain about. She's been in and out of the hospital and they're always measuring her height and weight. I think it's more my dodgy self-measuring, seeing as it conissited of me standing against the wall with a ruler and a pencil.

Sorry I'm not trying to be a nuisance, but every time I've had my height measured by a doctor or in hospital it's been with my shoes on, so maybe that's a factor?

Technically you're cheating when you lie down because the decompression of your spine will make you 1-2 inches taller. So if this is a value that will be compared against readings that have been obtained standing up, it will be very inaccurate. Your height typically refers to your erect height.