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Child Height Predictor

Predict a child's adult height from the parents' heights.

Units
Child
cm
cm

Enter your values to see the result.

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Clear instructions

Find steps, examples and limitations below.

Use online

Open the tool in a supported web browser.

Free to use

No sign-up required. Tool-specific limits may apply.

How to use the Child Height Predictor

Predict a child's adult height from the parents' heights.

  1. 1 Choose units and whether the child is a boy or girl.
  2. 2 Enter the mother’s and father’s heights.
  3. 3 Read the predicted adult height and range.

Example and practical tips

A mother of 163 cm and a father of 177 cm predict about 176.5 cm for a son and 163.5 cm for a daughter.

Frequently asked questions

How accurate is the prediction?

About 95% of children end up within roughly 8.5 cm (3.3 in) of the predicted height.

What else affects height?

Nutrition, sleep, health conditions and hormones all play a part alongside genes.

Report an issue

Something broken or not quite right? Tell us and we will look into it.