Height Chart for 5-Year-6-Month-Old Boys

For boys aged 5 years 6 months, the CDC median is 112.4 cm (3 ft 8.3 in), and 94% of the reference falls between 103.2 cm and 121.5 cm.

CDC standing stature percentiles for boys aged 5 years 6 months. Source: CDC 2000 Growth Charts: stature-for-age, 2-20 years, file statage.csv, row `Sex=1, Agemos=66.5 (completed month 66 band)` (dataset page).
Percentile	Metric	Feet-inches
3rd	103.2 cm	3 ft 4.6 in
5th	104.4 cm	3 ft 5.1 in
10th	106.2 cm	3 ft 5.8 in
25th	109.1 cm	3 ft 7.0 in
50th	112.4 cm	3 ft 8.3 in
75th	115.7 cm	3 ft 9.5 in
90th	118.6 cm	3 ft 10.7 in
95th	120.3 cm	3 ft 11.4 in
97th	121.5 cm	3 ft 11.8 in

Check a height against this row

Accepts 92.5 to 131.5 cm.

The next year in the table

From 5 years 6 months, the median gains 3.3 cm in 6 months and 6.5 cm in 12. The 12-month gain is 8.4 cm from age 2 and falls to 4.9 cm at 9 years 7 months, its lowest point between ages 4 and 10, so this age sits between the two.

The median here is 63.6% of the median at age 20 (176.8 cm).

The 3rd percentile climbs 5.8 cm over the next year and the 97th climbs 7.2 cm, so the spread between them grows by 1.4 cm.

Nearby rows of the CDC stature-for-age table for boys, in centimeters. The last column is the change in the median since the row above.
Age	3rd	50th	97th	Change
3 years 6 months	91.6	99.0	106.8
4 years 6 months	97.5	105.9	114.2	+6.9
5 years	100.3	109.2	117.8	+3.3
5 years 6 months	103.2	112.4	121.5	+3.2
6 years	106.1	115.7	125.1	+3.3
6 years 6 months	109.0	118.9	128.7	+3.2
7 years 6 months	114.8	125.1	135.8	+6.2

Spread at 5 years 6 months

At this age 18.3 cm separates the 3rd and 97th percentiles, compared with 13.2 cm at 2 years and 30.3 cm at 13 years 9 months, the narrowest and widest points for boys. The 25th-to-75th range is 6.6 cm.

Read as heights for age, the 3rd-percentile value (103.2 cm) is close to the median boy height at 4 years 1 month (103.1 cm); the 97th (121.5 cm) is about level with the median at 6 years 11 months (121.5 cm).

Boys and girls at 5 years 6 months

For girls of the same age the CDC median is 111.5 cm, which puts boys 0.9 cm ahead. Before 10 years 9 months, the boys' median is the higher of the two at every row of the CDC table.

When to see a pediatrician

From age 4, the site's guides treat growth under about 4 cm a year, or crossing downward through percentile lines, as a reason to see a pediatrician. For comparison, the 3rd-percentile line in this table gains 5.8 cm in the next year.

Reference values only, not medical advice. How these tables are built.