This is a children's adult height prediction calculator based on a linear regression analysis method or parent's height.
This is a children's adult height prediction calculator based on a linear regression analysis method or parent's height.
Complete the form and click Calculate to see the prediction
This calculator uses the parents' height only. It can be used to predict the future heights of unborn children or very young infants.
Complete the form and click Calculate to see the prediction
The following converter can be used to convert the body height between the metric unit and the unit used in the United States.
Our height calculator uses scientifically validated methods to predict a child's adult height:
"How tall will I be?" or "how tall will my child be?" are questions that are often asked. The height of a person is determined by a combination of genetics and environmental factors. Some studies suggest that genetics contributes 60%-80% of your final height.
Normally, a child's height is based on parental heights subject to regression toward the mean. This means that very tall or short parents are likely to have a taller or shorter child than average, but the child is likely to be closer to the average height than their parents.
Many factors beyond genetics can influence a child's ultimate adult height:
Infants and toddlers grow the fastest. The growth rate declines rapidly from birth to roughly age 2 and declines more slowly thereafter. During puberty, the growth rate increases again to a second maximum, after which it slowly declines to zero. This is typically referred to as the pubertal growth spurt.
On average, female growth trails off to zero at about 15 years old, while male growth continues until around 18 years of age.
Wondering how tall your child might grow? Our scientifically-backed Midparental Height Calculator offers a reliable estimate based on parental heights. Trusted by health-conscious parents, this tool uses the standard pediatric formula to predict a child’s future height range. It’s free, easy to use, and aligned with current health content guidelines — helping you make informed decisions about your child’s growth and development.
Consider consulting a healthcare provider if:
Height predictions using the Mid-Parental Method typically have a standard error of approximately 2-3 cm (about 1 inch). The accuracy can vary based on various factors, including environmental influences, nutrition, and health status.
Predictions tend to become more accurate as a child gets older. For children over 4 years old, predictions are generally more reliable. During puberty, height predictions can be less accurate due to varying growth spurts.
While genetics plays a major role, ensuring proper nutrition, adequate sleep, regular exercise, and good overall health can help a child reach their full height potential. However, there are no proven methods to exceed the genetically determined height potential.
Different calculators may use different formulas or methods for prediction. Our calculator uses the scientifically validated Mid-Parental Method, which is widely recognized in the medical community for its balance of simplicity and accuracy.