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Child Height Predictor

Predicted adult height using the mid-parental height method.

Formula: Mid-parental height method

Worth Knowing

The mid-parental method averages the parents' heights and adjusts by sex to estimate a child's adult height, and it works because height is strongly heritable — but genes are only part of the story. Nutrition, overall health, and timing of puberty all shift the outcome, and the prediction carries a margin of roughly ±10 cm. It's a fun estimate rather than a forecast; a pediatrician tracking a child's growth curve over time gives a far more reliable projection.

How to Use

  1. Enter Child's gender into the first field of the Child Height Predictor.
  2. Fill in the rest: Father's height, Mother's height.
  3. Your result appears instantly as you type — there's no submit button or page reload.

Formula

Mid-parental height method

Frequently Asked Questions