Growth by age

Rates of growth depend on the age of the child.

In order to identify if there is a problem with your child’s growth, it is important to understand how standard growth can vary by age.

There is a guide referred to as the ‘rule of fives’ that outlines the typical growth rate of a child. It suggests:
• From birth to 1 year, babies grow about 25 cm
• From 1 to 4 years of age, children grow at a rate of about 10 cm per year
• From 4 years of age to puberty, their growth slows to about 5 cm per year

It is estimated that around 80% of a child’s growth will occur before puberty and during puberty there is a rapid period of growth, called the pubertal growth spurt, which is when adult height should finally be reached. For girls, puberty usually starts at around 11 years old, and for boys, puberty starts at about 13 years old.

Growth in babies (age 0-1 year)

From birth to 1 year, it is important to keep track of your baby's growth to potentially identify any problems early. Learn more about growth in babies.

Growth in toddlers (age 1-4 years)

Your little baby has all of a sudden become a toddler, and it seems out of nowhere! Learn more about growth in toddlers.

Growth in children (4-10 years)

Your child may have started school and you may have started noticing signs that perhaps your child is not growing as they should be. Learn more about growth in children.

Growth in teens (10-16 years)

Puberty is a time for rapid growth and also when any potential growth disorders may become more obvious. Learn more about growth in pre-teens and teenagers.

Get prepared for talking to your doctor

If you are concerned about your child’s growth, don’t hesitate to speak with an HCP. They will be able to complete some measurements and investigate further if needed, potentially referring you on to a specialist. Here we can help you plan for both conversations.