You can use a cheat setscale.
I recommend not using the player.setscale if you want to play the game legitimately. The problem with player.setscale is that it doesn't just increase the size of your character, it also increase your movement speed, your jump distance, and even your damage output. It scales all of that to match your new size. You may have a difficult time noticing this if you make minor adjustments from the default value of 1 (say 1.03 or 1.04 to get your character to Nord size), but it's still happening regardless. Your character will be able to move faster than s/he should be and hitting hard than s/he legitimately can. Now, if that kind of cheating doesn't matter to you, then there you go. But for players who want to play the game without cheating and wish they could modify their character's height, player.setscale is not a good solution (unfortunately).
I was very sad to realize all this after doing some tests after reading up on this proposed solution in another thread, because I've invested a large amount of time into my character and (for whatever reason, probably because I've been sticking to a first-person view almost all of the time) I just now noticed tonight that my Imperial character is noticeably shorter than even the Nord women. Makes it difficult to feel heroic. But, I'd rather be short than turn into Skyrim Supersoldier through this particular console command.