I'm gonna share my height chart for anyone to use.
Here's a transparent version, a link to a jpeg is here on twitter:
https://twitter.com/laranthrod/stat.....74339957551105
or
https://pbs.twimg.com/media/FOU6c7ZWQAAtUer?format=png&name=large

If you have some art knowhow you can add your own background to this transparent one.
If not? Ask a friend who does lol.

I am not doing a centimeters version, I don't work in centimeters for heights.
You can extend it width wise to add more characters of course.
If your characters are taller than 10ft I cannot help you lol