Height for girls at 18 years

At 18 years, the median height for girls on the CDC 2000 growth charts is 163.1 cm (64.2 in): half of girls this age measure less and half more. The middle half of girls, from the 25th to the 75th percentile, falls between 158.8 and 167.5 cm, a spread of 8.7 cm. The outer lines of the chart, the 3rd and 97th percentiles, sit at 150.9 and 175.3 cm.

Since 17 years, the median has risen by 0.2 cm over 1 year. By 19 years it reaches 163.3 cm.

For boys at 18 years the median is 176.2 cm, 13.0 cm more than for girls, which is why the charts are drawn separately by sex.

From 2 years CDC recommends its own 2000 growth charts, which draw the 3rd to the 97th percentile; under 2, the WHO charts draw the 2nd to the 98th.

Reading the table: a girl at 18 years who measures 165.5 cm is at about the 64th percentile, meaning that out of 100 girls this age, about 64 measure less. From 2 years this is height measured standing. If a child of 2 or older was measured lying down, CDC subtracts 0.8 cm before comparing.