Child Height Predictor
Predict a child's adult height from the parents' heights.
Enter your values to see the result.
Continue your work
- BMI Calculator — Check body mass index.
- Length Converter — Convert heights between units.
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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 Choose units and whether the child is a boy or girl.
- 2 Enter the mother’s and father’s heights.
- 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.