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Child Height Prediction — A Simple Estimate Based on Genetics

An advanced tool to estimate a child’s future adult height, based on parental height and commonly used research-based models.

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📏 Height Prediction for Children

What Is Child Height Prediction — and Why Can It Be Helpful?

Many parents wonder what their child’s future adult height might be and whether current growth fits the expected pattern.

“How tall is my child likely to be as an adult?”
Important to know Height prediction is a statistical estimate only. It does not replace proper growth monitoring, pediatric evaluation, or professional medical advice.

How does height prediction work?

Genetic target height (Mid-Parental Height)

This method uses the parents’ heights to estimate a likely adult height range that the child may grow into.

Weighted height prediction (Khamis-Roche)

When updated age, height, and weight measurements are available, this model also considers current growth status and may offer a more refined estimate in certain age ranges.

What is important to remember?

  • Height prediction is not a diagnosis. It is only one part of understanding a child’s growth.
  • One single result does not automatically mean that something is wrong.
  • The most meaningful insight usually comes from the growth trend over time, not from one isolated measurement.
  • Factors such as nutrition, sleep, physical activity, puberty timing, and overall health can all influence final height.
  • If a result seems unusual or concerning, professional guidance is always the best next step.
Tip: If you have recent measurements from the last few months, entering the most up-to-date values may improve the quality of the estimate.
📏

How Tall Will My Child Be?

A statistical estimate based on parental genetics. For informational purposes — not a medical tool.

👶 Child Info
Years
Months
Tip: Use "Date of Birth" for a more precise age calculation.
🧬 Parental Heights

Both parents required for the genetic prediction.

If parental heights are missing, a clear error message will appear instead of a result.
Your Input Summary
Gender: — Age: — Height: — Weight: — Father: — Mother: —

🔮 Height Prediction

—
Genetic Target (based on parents)
— cm
—
ℹ️ Statistical estimate for informational purposes only — not a medical tool.

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Frequently Asked Questions About Height Prediction Models in Children

Here you’ll find clear, practical answers to some of the most common questions parents ask about predicting a child’s future height.

Is height prediction accurate?
Height prediction is based on research-based models, but it provides a probability-based range rather than one exact number.

This is why the result should be viewed as an estimate, and ideally interpreted alongside the child’s growth pattern over time.

Do I need to enter my child’s height and weight?
Not always.

For genetic target height (Mid-Parental Height), entering the parents’ heights is usually enough. Height and weight data are mainly needed when using a weighted prediction model such as Khamis-Roche.

Do birth measurements affect final height prediction?
Usually not in a major way.

Birth data are more important for growth monitoring—for example, when tracking growth curves and early growth patterns— but they are not usually the main factor in predicting final adult height in common genetic models.

When should I seek professional advice?
It may be a good idea to seek professional advice if any of the following apply:
  • There is a persistent gap between the child’s actual height and the expected range over time.
  • There is a drop or slowdown in growth velocity.
  • There are concerns related to nutrition or overall health, such as poor appetite, unusual fatigue, or possible absorption issues.
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✓ Free and fast — takes less than a minute ✓ Clear explanations for parents ✓ Based on professional knowledge