Height by age · CDC growth charts

Average height for a 9-year-old girl

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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

The average 9-year-old girl is 132.9 cm (4′4½″) tall, according to CDC growth charts. Nine out of ten girls that age are between 4′0½″ and 4′8½″ (123–144 cm). At 9, an average girl has reached about 81% of adult height, with about 30 cm (12.0 in) still to grow.

Reviewed · 4 sources · Not medical advice

Height chart for 9-year-old girls

PercentileHeightFeet, inchesInches
5th123.0 cm4′0½″48.4 in
25th128.8 cm4′2½″50.7 in
50th (average)132.9 cm4′4½″52.3 in
75th137.2 cm4′6″54.0 in
95th143.5 cm4′8½″56.5 in

CDC 2000 stature-for-age percentiles at exactly 9 years. A girl at the 50th percentile is taller than half of girls the same age.

Where growth stands at 9

Most girls this age grow steadily, about 5 cm (2 in) a year. Puberty may begin from about 8.

The average girl at 9 has reached 81% of the average adult woman's height in the same charts (5′4½″). A girl who starts puberty late will be below average now and often catches up later; an early developer may be tall now and finish close to average.

Is my child's height normal?

Doctors look less at one measurement than at the pattern: a child who stays near the same percentile year after year is growing normally, whatever that percentile is. Talk to your doctor if your child drops across percentile lines, grows much slower than classmates, or is far below what both parents' heights predict.

Boys vs. girls at 9

The average 9-year-old boy is 133.5 cm (4′4½″). See the full chart for boys.

Questions people ask

How tall should a 9-year-old girl be?

There is no single "should". The average is 132.9 cm (4′4½″), and anything from about 4′0½″ to 4′8½″ is within the normal range. What matters more is growing steadily along the same percentile line over time.

Is 4′6″ tall for a 9-year-old girl?

Yes, a bit. 4′6″ is around the 75th percentile: taller than about 3 in 4 girls the same age.

What is short for a 9-year-old girl?

Below about 4′0½″ (123 cm) is under the 5th percentile. Many children there are simply small like their parents or late developers, but it is worth a check with a doctor, especially if growth has slowed.

How much taller will a 9-year-old girl get?

On average about 30 cm (12.0 in), but it depends on when puberty starts. The calculator on this page estimates it from current height, weight and both parents' heights.

Sources

  1. CDC. Growth charts (2000 stature-for-age, ages 2 to 20)
  2. Nemours KidsHealth. Growth and your 13- to 18-year-old
  3. Hospital for Special Surgery. Is it possible to predict a child's adult height?
  4. 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)

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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