there is none. (if you dont know, there is a boy that is 14 over 6 feet tall and never stops growing because of a tumor pressed against the part of his brain that controls growth)
The height of a 2.5 year old boy will vary depending on genetics. The average of a 2.5 year old boy is around three feet.
The average or normal height of a ten year old girl who's in 5th grade is 4'5-4'8
average height for a one year old girl is 32 inches average weight for a one year old girl is 24.75 lb average height for a one year old boy is 33.75 inches average weight for a one year old boy is 27 lb
Ten feet
45
it is about 5'2
The average height for a 9 year old is 135cm (4'5") for a boy and 130cm (4'3") for a girl.
There is no perfect height. It is different for each person.
The average height of a 14 yr old boy is 64.5 inches.
1
5'10'' to 6'1''
About 4'11