Child Height Predictor

Health & Body

Target adult height from parents with expected range

Quick Answer

Child Height Predictor: Target adult height from parents with expected range. Boy = (father + mother + 13) ÷ 2.

Father's height (cm)

Mother's height (cm)

Target adult height (mid-parental)

175.0 cm

Genetic range 167.5 – 182.5 cm (±7.5)

Predicted vs population (18y China)

<P3

P3-P50

P50-P97

>P97

Target 175.0cm ≈ P60 of male adults

Target height175.0 cm

Genetic range168~183 cm

vs father+0.0 cm

Population P50172.7 cm

2-year doubling method (rough)

Steps

1Boy: (father + mother + 13) ÷ 2 = (175 + 162 + 13) ÷ 2 = 175.0 cm
2Genetic range = target ± 7.5 cm = 167.5 – 182.5 cm (covers ~95% of outcomes)

Height factors beyond genetics

Factor	Impact	Action
Genetics	~70%	Fixed
Nutrition	~15%	Protein, Ca, Vit D
Sleep	~10%	GH peaks in deep sleep
Exercise	~5%	Jump/stretch sports
Bone age	timing	Early/late puberty shifts final height

💡 The mid-parental (CMH) method is the standard clinical estimate with ±7.5cm error — genetics explains ~70% but nutrition/sleep decide where in the range a child lands. If a child tracks below P3 or drops 2 percentile curves, see a pediatric endocrinologist; bone age X-ray is the definitive assessment.

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How to Use

Enter body metrics: fill height, weight, age etc. as prompted by the Child Height Predictor.
Read value and grade: results appear instantly with an authority-based classification.
Check reference tables: confirm your range and healthy targets against the tables on this page.
Back-solve your goal: adjust inputs to see what it takes to reach a target.

Key Points

Child Height Predictor is a free online health tool — open and use, no sign-up.
All calculations run locally in your browser; your data never leaves the device.
Key capability: Target adult height from parents with expected range.
Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Mid-parental target height (CMH)

Boy = (father + mother + 13) ÷ 2

Girl = (father + mother − 13) ÷ 2

Expected range: ±5–7.5 cm; genetics explains 60–70%

FAQ

How do I use the Child Height Predictor?

Open the page and fill in the input fields — results update automatically. Target adult height from parents with expected range.

Are the results accurate?

Results follow published international standards (WHO, ACE, IOM) and are for reference only.

Can this replace medical advice?

No. Always consult a qualified healthcare professional for health decisions.

Is it free? Do I need to sign up?

Completely free. No registration, login or download required.

Does it work on mobile?

Yes. The responsive design works on all devices.

Related Guides

Source & Updates

Based on WHO, ACE, IOM and other published international standards. Last updated: 2025-07

Authoritative sources:

Last updated: 2026-08-04

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Cite this page: YiJianSuan. Child Height Predictor[EB/OL]. https://www.yijiansuan.com/en/c/health/child-height

Results provided by this tool are for reference only and do not constitute professional advice.