Height for boys at 17 years

At 17 years, the median height for boys on the CDC 2000 growth charts is 175.3 cm (69.0 in): half of boys this age measure less and half more. The middle half of boys, from the 25th to the 75th percentile, falls between 170.3 and 180.1 cm, a spread of 9.8 cm. The outer lines of the chart, the 3rd and 97th percentiles, sit at 161.2 and 188.6 cm.

Since 16 years, the median has risen by 1.8 cm over 1 year. By 18 years it reaches 176.2 cm.

For girls at 17 years the median is 162.9 cm, 12.4 cm less than for boys, 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 boy at 17 years who measures 178.0 cm is at about the 65th percentile, meaning that out of 100 boys this age, about 65 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.