Average height by age

Girls eight years old are heavier than boys in proportion to what they will weigh at 18 or 20. At...

During this year a boy usually grows between 7 and 12 centimetres (2.75 and 4.75 inches) and a gi...

First of all, no. They aren't all supposed to be taller. It's true that often girls have a growth...

Kids tend to get taller at a pretty steady pace, growing about 2.5 inches (6 to 7 centimeters) ea...

They tend to grow most quickly between ages 12 and 15. The growth spurt of boys is, on average, a...