Typically males are on the small side compared to females. I don't want to put exact numbers as their sizes can very.
I have a 2 year old male that is 1500 grams (about 3ft) that has always been a moderately good eater.
I also have a 2 year old male (same age within a few months) that is 2000 grams and 4ft, he has always been a above average eater.
So my answer would be males are commonly between 3-4 ft, although I'm sure there have been males up to 5ft, but it is not common.