Child Height Predictor
Estimate adult height using the mid-parental height method with growth percentile approximation.
Predicted Adult Height
What is the Child Height Predictor?
The Child Height Predictor is a free online calculator that estimates a child's adult height using the mid-parental height method. This widely used formula averages the parents' heights and adjusts for the child's gender to produce a target adult height with a typical range.
How to Use
- Select your preferred unit (inches or centimeters) and the child's gender.
- Enter the child's current height and age.
- Enter the mother's and father's heights in the same unit.
- Click Predict Height to see the estimated adult height, range, and growth percentile.
Frequently Asked Questions
How accurate is the mid-parental height method?
It provides a rough estimate within about 2 inches or 5 cm for most children. Genetics, nutrition, health, and environmental factors all influence final adult height.
Can I use centimeters instead of inches?
Yes, select centimeters from the unit dropdown. The calculator automatically adjusts the formula constants for the chosen unit.
What does the growth percentile mean?
The percentile approximates how the child's current height compares to CDC growth chart medians for their age and gender. It is for reference only.
Is my data saved or shared?
No. All calculations run locally in your browser. BestCalc does not collect, store, or transmit any personal data.