Board Thread:Questions and Answers/@comment-34288720-20190128012153/@comment-24708868-20190128165927

I can partially answer your question. I don't know any height chart for the teenage characters, but there is one for the adult versions from GO of Endou and the others  (I found it on Twitter)  https://pbs.twimg.com/media/DsdXt8BU0AAjPV9?format=jpg&name=small

Judging by the difference in height between adult Endou (170m) and an average-sized teenager like Tenma, I think Endou and the others who are around his size are about 145m tall, which is extremely short for his age