How tall is master chief?

Answer 1

He is 6 feet 2 inches tall, with his enhancements.

It is nearly impossible to know how tall he would be without his genetic enhancements, as he was taken as a child and few physical characteristics are actually given about him, but it's speculated that it'd be about the same (6ft).

Answer 2

I researched and he is without a doubt 6 foot 8.2 inches tall.
6 ft without armor 7 feet with armor.

Answer 3

Master Chief stands about seven feet tall in armor, and 6 feet, 7 inches without it.

Answer 4

7 feet tall