What is the average height for a teenage boy:girl?

The average height for teenagers in the UK depends on age, since you're growing throughout your teens.

For girls, the average is around 155cm (5'1") at 13, reaching about 165cm (5'5") by 18. Most girls do most of their growing between 10 and 14, so by 15 or 16 you're usually close to your adult height.

For boys, the average is around 156cm (5'1.5") at 13, reaching about 175cm (5'9") by 18. Boys tend to have their growth spurt later than girls, usually between 12 and 16, and some keep growing into their late teens or even early twenties.

These are averages though. There's a huge range of normal. Your height is mostly determined by genetics, so looking at how tall your parents are gives you a rough idea of where you'll end up.

If you feel like you're shorter or taller than everyone around you, that's often just a timing thing. People grow at different speeds, and someone who's short at 13 might end up taller than their friends by 17. Puberty doesn't happen on the same schedule for everyone.

The average height for teenagers depends on age because you are still growing.

For girls, the average is about 155cm at 13 and about 165cm by 18. Most girls do most of their growing between 10 and 14.

For boys, the average is about 156cm at 13 and about 175cm by 18. Boys usually have their growth spurt later than girls, between 12 and 16.

These are just averages. There is a big range of normal. Your height is mostly decided by your parents' genes.

If you feel shorter or taller than everyone else, it is often just a timing thing. People grow at different speeds.