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15 Αυγ 2024 · The average height of a 12-year-old boy is 148.3 cm (4 ft 10 in), while for a 12-year-old girl, it is 150.0 cm (4 ft 11 in). The reason girls are slightly taller at this age is that, on average, they go through puberty earlier than boys.
Accurately predict a child's adult height and learn how tall it will be when it grows up. Calculate your expected adult height (answering the ever interesting "How Tall Will I Be?" question), or the predicted adult height of a child or teenager based on their current age and stature.
On average, female and male growth trails off to zero at about 15 and 18 years old, respectively. In some cases, a person's height begins to shrink in middle age, though shrinkage of stature is largely universal in the very elderly.
It takes the average height of the parents and add 2.5 inches (6.5cm) for boys or subtract 2.5 inches for girls.
Height Percentile Calculator to determine how tall or short you are versus your peers. Calculates height percentile by accounting for gender, age, and country. Estimate what percentage of the population or of your biological gender are taller or shorter than you.
The height percentile calculator also lets you specify male or female gender. Some country specific data was missing one gender. To fill in the missing data, an average 8% gender height gap was used.
You can compare your child's expected height, weight, and head circumference to those of their age and gender. Children’s developmental curves are often relatively consistent. So you can use the charts to approximate a child’s future height as an adult.
