A major growth spurt happens at the time of puberty, usually between 8 to 13 years of age in girls and 10 to 15 years in boys. Puberty lasts about 2 to 5 years.
However, once the growth plates in the bones close, a person will generally not grow any taller. Most females reach their full adult height aged 14–16 years. Most males reach their full height by the age of 16–18 years. It is very unusual for a person to grow after the age of 18 years.
The short answer is that, on average, people keep getting taller until puberty stops, around 15 or 16 years old. By the time someone has reached their adult height, the rest of their body will be done maturing too. By age 16, the body will usually have reached its full adult form — height included.
The rate of growth in height reaches its peak by about 2 years after puberty began (average age is 12 years). Menstruation begins, almost always after the peak growth rate in height has been reached (average age is 12.5 years).
Increasing your height after 18 is not possible, even through nutrition and exercise, because the growth plates stop growing. The growth plates (epiphyseal plates) are present at the end of long bones.
For example, if you look at the CDC growth chart for boys 2 to 20 years, a 13-year-old boy who is 5'1" (61 inches tall) is in the 50th percentile. Based on that curve, they should reach an adult height between 5'9" or 5'10" (69–70 inches).
We define puberty for girls from 10 to 14 years old, boys from 11 to 15 years old. Depending on the inheritance of height of parents, nutrition, exercise, and rest, girls can grow 10 to 12 cm tall and can increase up to 12 to 14 cm during this golden age.
The term “late bloomer” refers to a child who goes through puberty later than their peers. Constitutional growth delay, the medical term for this condition, runs in families. Late bloomers will catch up on their growth and have standard adult height, although it may take a little extra time and patience.
Overall, there is no evidence that suggests stretching can lead to lasting increases to your height. Your height is mainly determined by your genes and bone structure. And environmental factors like diet and health may also have an effect.
Changes in Boys
The growth spurt of boys is, on average, about 2 years later than that of girls. By age 16, most boys have stopped growing, but their muscles will continue to develop.
During puberty, boys and girls will have a growth spurt and grow to their adult height. So that means girls who start puberty the latest will still be getting taller in their mid-teens. For boys, the latest to reach puberty will still be getting taller into their late teens.
Height increase averages out to be about 6 centimeters (2.4 inches) per year throughout childhood. Then there is a period of slow growth right before puberty. Once puberty starts, there is a sharp increase in growth of about 8 centimeters/year.
In the latest available data, the global mean height for men was 171 cm, versus 159 cm for women.
According to the U.S. Food and Drug Administration, short stature means an estimated final height below 5 feet 3 inches for boys or 4 feet 11 inches for girls.
Is 174 cm considered tall or short? - Quora. Is 174 cm considered tall or short? 174 cm is considered short for a male and tall for a female.
However, as per the Centers for Disease Control and Prevention report, 13-year-old males weigh between 35.8 kg and 55.7 kg and girls weigh between 34.4 kg and 54.3 kg.
What is the average height for a 13 year old? The average height of a 13-year-old girl is 155.4 cm (5 ft 1), and for a 13-year-old boy, it is 154.9 (5 ft 0). This data is taken from WHO growth charts, which are the international standard for height percentiles.