Height Growth Rate & Prediction Calculator
How Does the Height Growth Rate Calculator Work?
Tracking a child's growth is one of the most vital indicators of their overall health. Our calculator uses two primary scientific methods to assess growth: Annual Growth Velocity and the Mid-Parental Target Height formula.
The Mid-Parental method (also known as the Tanner Method) uses the biological parents' heights to calculate the genetic potential of the child. While environmental factors like nutrition and exercise play a role, genetics account for roughly 60% to 80% of final height.
The Math Behind the Prediction
To calculate the Target Adult Height, we use the following formulas:
- For Boys: ((Father's Height + Mother's Height + 13) / 2)
- For Girls: ((Father's Height + Mother's Height – 13) / 2)
The "Growth Velocity" is simply the difference between the current height and the height exactly one year ago. For most children between age 3 and puberty, a normal growth rate is roughly 5cm (2 inches) per year.
What is a "Normal" Growth Rate?
Growth isn't always linear. Children experience significant "spurts." However, pediatricians generally look for the following averages:
- 0-12 Months: 23–27 cm per year
- 1-3 Years: 10–13 cm per year
- 3 Years to Puberty: 5–6 cm per year
Understanding the Results
If your child's growth velocity is less than 4cm per year during mid-childhood, it may be worth consulting a pediatrician to rule out nutritional deficiencies or hormonal imbalances. Remember, this calculator provides an estimate based on averages; every child's growth curve is unique.
Tips for Maximizing Growth Potential
While genetics set the "ceiling," lifestyle factors determine if a child reaches it. Ensure your child gets adequate Sleep (growth hormone is primarily secreted during deep sleep), Protein and Vitamin D rich nutrition, and regular Physical Activity to stimulate bone density and growth.