Height Chart for 18-Year-6-Month-Old Girls
Selected standing stature percentiles for girls at 18 years 6 months, reported in centimeters and feet-inches from the cited official reference table.
CDC percentile table
| Percentile | Metric | Feet-inches |
|---|---|---|
| 3rd | 151.0 cm | 4 ft 11.4 in |
| 5th | 152.5 cm | 5 ft 0.1 in |
| 10th | 154.9 cm | 5 ft 1.0 in |
| 25th | 158.8 cm | 5 ft 2.5 in |
| 50th | 163.2 cm | 5 ft 4.3 in |
| 75th | 167.6 cm | 5 ft 6.0 in |
| 90th | 171.5 cm | 5 ft 7.5 in |
| 95th | 173.8 cm | 5 ft 8.4 in |
| 97th | 175.3 cm | 5 ft 9.0 in |
What these numbers imply
The figures below are not published directly by the CDC. Each one is calculated from the official stature-for-age and weight-for-age tables so that this page answers questions the raw dataset leaves open. Values differ for every age and sex.
| Measure | Value | How it was derived |
|---|---|---|
| Growth over the next 12 months | +0.1 cm | The 50th percentile rises from 163.2 cm to 163.3 cm over the following year. Derived from adjacent rows of the same CDC table. |
| Spread between 3rd and 97th percentile | 24.4 cm | At this age the middle 94% of girls fall between 151.0 cm and 175.3 cm. A wider spread means age alone explains less. |
| Share of adult median height reached | 99.9% | The 50th percentile at this age is 163.2 cm; the CDC table ends at age 20 with a 50th percentile of 163.3 cm. |
| Difference from boys at the same age | -13.2 cm | The 50th percentile for girls is 13.2 cm shorter than the 50th percentile for boys at this age. |
| Median weight and resulting BMI at this age | 56.8 kg · BMI 21.3 | Combining the 50th percentile of weight (56.8 kg) with the 50th percentile of height (163.2 cm) from the CDC weight-for-age and stature-for-age tables. |
These are population reference statistics only. They describe how a group of children of this age and sex is distributed, and say nothing about any individual child.
How to read this table
For this table, the percentile is a position in the cited reference distribution for children of the same sex and completed age band. The 50th percentile is the median: about half of the reference observations are lower and half are higher. A percentile is not a forecast, target, diagnosis, or measure of an individual child’s health. Measurement method and the reference chart used can change the reported position.
Measurement: CDC reports standing stature for this age band.
Adjacent ages
Height predictor
This reference table does not embed the calculator. Open the homepage height predictor separately.
Data source
Dataset: CDC 2000 Growth Charts: stature-for-age, 2-20 years. All nine displayed values come from statage.csv, row Sex=2, Agemos=222.5 (completed month 222 band). See the official CDC dataset page.
Reference distribution only. This page does not provide medical advice, a diagnosis, or an individual height forecast.