How tall will my child be?
Use the child’s height, both parents, and optional weight. The free answer is the prediction; the report explains the range and the methods.
Own the question, not just the keyword
How tall will they actually be?
These are the searches parents already type. Each page uses the same calculator — CDC curve, parental genetics, Khamis–Roche when weight is in.
How tall will my son be?
Boys typically keep growing later than girls. A 10-year-old’s CDC percentile plus dad and mom is a better start than the old “double height at two” rule.
How tall will my daughter be?
Most girls finish most of their growth 1–2 years after menarche. Mid-parental height and today’s percentile still set the range.
What is the Khamis–Roche method?
Khamis–Roche (Fels Longitudinal Study, 1994; coefficients corrected 1995) predicts adult height from current height, weight, age, and mid-parental height — no bone-age X-ray.
What is mid-parental height?
Tanner’s 1970 formula: add the parents, add 13 cm for a boy or subtract 13 cm for a girl, then divide by two. The classic range is about ±8.5 cm.
What does a height percentile mean?
A 74th percentile means taller than about 74 of 100 children of the same age and sex on the CDC 2000 stature chart. A falling percentile matters more than a low-but-stable one.
How do adult height predictors work?
Serious predictors combine the child’s growth curve, parental genetics, and — when weight is known — Khamis–Roche. Stretching gadgets are not in that list.
Can short parents have a tall child?
Yes. Height is highly heritable, but it is not an average of two parents. Regression to the mean and the ±8.5 cm Tanner band leave room for a child clearly taller than both.
How accurate are height predictors?
Khamis–Roche’s typical 90% error is about ±5 cm in the original Fels sample. No website replaces a pediatrician when percentiles are falling.
Will my young athlete keep growing?
Basketball, volleyball, baseball, football, and swim families already think in inches. The honest question is the growth window — not a training hack that reopens plates.