‹ Average height by age

Average height for a 7-year-old girl

At exactly 7 years old, the median girl in the US is 4'0" (121.5 cm) tall, according to the CDC growth charts. Half of 7-year-old girls are between 3'10½" and 4'1½", and about 9 in 10 fall between 3'8½" and 4'3½".

Height percentiles for 7-year-old girls

CDC 2000 stature-for-age chart, at 7 years 0 months.

PercentileHeightcmin
3rd3'8"111.643.9
5th3'8½"112.844.4
10th3'9"114.745.1
25th3'10½"117.846.4
50th (median)4'0"121.547.8
75th4'1½"125.349.3
90th4'2½"128.850.7
95th4'3½"131.051.6
97th4'4"132.452.1

What’s typical at 7 for girls

Between 7 and 8, the median girl grows about 2½ in (6.1 cm) — from 4'0" to 4'2".

A median 7-year-old girl has reached about 74% of the CDC's median adult height for women (5'4½"), so roughly 16½ in (41.8 cm) of growth is still typical from here.

This is the steady stretch of childhood: growth runs at a fairly even pace and most girls track along the same percentile line year after year. Puberty typically begins between 8 and 13 for girls, and the growth spurt comes early in it.

How to read a percentile

A percentile compares a child with others of the same age and sex on the CDC 2000 growth charts — the same L, M and S values a pediatrician’s chart is drawn from, and where every number on this page comes from. The 50th percentile is the median: half of girls that age are shorter and half are taller. The 5th and 95th bracket the middle 90%.

Pediatricians care less about the number than the line. A child who stays near the same percentile year after year is growing normally, whatever that percentile is — a steady 15th is healthier than a 60th that has just dropped from the 90th. Crossing two of the major lines, or sitting below the 3rd, is the usual cue to have a pediatrician take a look. None of this is medical advice.

How tall will a 7-year-old girl be as an adult?

Height at 7 is one input. The calculator combines it with both parents’ heights and puberty timing to give the range adult height will most likely land in — free, no account.

Try the height calculator

The MaxHeight app shows the number inside that range and sharpens it as you log — free to download on the App Store.

Source: CDC 2000 growth charts, stature-for-age LMS parameters (statage.csv). Adult figures: NHANES 2015–2018. MaxHeight is not affiliated with or endorsed by the CDC.