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Calculator · Age 17

How tall will I be at 17?

Your height
ftin
Mother's height
ftin
Father's height
ftin

Your result

[ — – — ]

Shown as a 90% range: the adult height lands inside it 9 times out of 10. Heights and weight are never sent anywhere.

Short answer

At 17, the average boy is 5′9″ and has reached about 99% of adult height; the average girl is 5′4″ and has reached about 100%. That typically leaves about 2 cm (0.6 in) for boys and 0 cm (0.2 in) for girls, but timing varies by two years either way. Enter your numbers above for your own adult height range.

Reviewed · 4 sources · Not medical advice

Typical height and growth left at 17

Average heightAdult height reachedTypical growth left
Boys5′9″ · 175 cm99%2 cm · 0.6 in
Girls5′4″ · 163 cm100%—

Averages from CDC growth charts at exactly 17 years, compared with the chart's adult height at 20.

Boys at 17

Most boys are close to adult height. Late developers can still add a few centimetres.

Girls at 17

Most girls have finished growing.

Why an average isn't your answer

Two 17-year-olds of the same height can end up at very different adult heights, because one has done most of their growing and the other hasn't started. Your parents' heights and your current weight tell the calculator which one you are likely to be, so your range is far tighter than any average. Check signs you're still growing too.

Questions people ask

Can I still grow at 17?

Probably, if you started puberty at an average or later age. At 17 an average boy still has about 2 cm left and an average girl about 0 cm. Measured height that hasn't changed in 6 to 12 months is the sign you're close to done.

How much will I grow after 17?

Averages: boys about 2 cm (0.6 in), girls about 0 cm (0.2 in). Late developers grow more after 17, early developers less.

Is 5′11″ tall for 17?

For a boy it is about the 75th percentile at 17. For a girl the 75th percentile is 5′6″.

Sources

  1. CDC. Growth charts (2000 stature-for-age, ages 2 to 20)
  2. Khamis HJ, Roche AF. Predicting adult stature without using skeletal age: the Khamis-Roche method. Pediatrics 1994;94(4):504–507 (erratum 1995;95:457)
  3. Nemours KidsHealth. Growth and your 13- to 18-year-old
  4. Hospital for Special Surgery. Is it possible to predict a child's adult height?

Your exact number and a daily plan

TallPath runs the same prediction from a 2-minute quiz, shows where you'll likely land inside the range, and builds a daily sleep, food and posture plan around it.

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