Height Predictor

— cm
Predicted (Boy)
— cm
Boy Range (±8.5cm)
— cm
Predicted (Girl)
— cm
Girl Range (±8.5cm)
175
Father
162
Mother
Boy
Girl
Formula: Boy = (Father + Mother + 13) / 2 | Girl = (Father + Mother - 13) / 2. Genetics accounts for ~80% of height; nutrition, sleep, and exercise account for the rest.

Frequently Asked Questions

How accurate is child height prediction?

The mid-parental height formula provides a reasonable estimate, but genetics account for only about 80% of adult height. Nutrition, sleep, and exercise also play significant roles. Actual height may vary by ±8.5 cm.

What formula is used for height prediction?

Boy = (Father's height + Mother's height + 13) / 2; Girl = (Father's height + Mother's height - 13) / 2. This is the widely used Tanner mid-parental height method.

What are WHO height percentiles?

WHO growth percentiles indicate where a given height falls relative to same-sex adult peers. For example, the 75th percentile means taller than 75% of peers. This tool uses WHO 18-year-old adult height reference data for estimation.

How can I help my child grow taller?

Ensuring adequate sleep (growth hormone peaks during deep sleep), balanced nutrition (protein, calcium, vitamin D), and regular exercise (jumping, basketball, swimming) all help children reach their genetic height potential.