Adult Height Prediction
Predict adult height using mid-parental height. Genetics account for ~80% of height variation. Most reliable from age 2-3.
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±5 cm typical range Genetics ~80% of variation Reliable from age 2-3
Ready to run the numbers?
Why: Height prediction helps parents assess growth and identify potential concerns. Genetic potential is the main factor.
How: Mid-parental height: (mother + father ± 13) ÷ 2 for boys/girls. ±5 cm gives typical range.
Run the calculator when you are ready.
👦 Average Growth Boy (10)
10-year-old boy with average parental heights, normal growth trajectory
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👧 Tall Parents Girl (8)
8-year-old girl with tall parents, above average height
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📏 Short Stature Concern (6)
6-year-old with height below average for age, parents are shorter
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🌱 Early Puberty Girl (11)
11-year-old girl in early puberty with accelerated growth
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🏃 Adolescent Boy (14)
14-year-old boy mid-puberty, assessing final height potential
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Enter Measurements
Child Information
Parental Heights
Additional Factors
For informational purposes only — not medical advice. Consult a healthcare professional before acting on results.
🏥 Health Facts
Mid-parental height ± 5 cm
— Growth pediatrics
What is Height Prediction?
Height prediction uses a child's current measurements and parental heights to estimate their likely adult stature. The mid-parental height method is the most widely used formula, providing a genetic target height based on both parents' heights.
Mid-Parental Height
The genetic target height calculated from both parents' heights, adjusted for the child's gender.
Formula:
- Boys: (Mom + Dad + 13) / 2
- Girls: (Mom + Dad - 13) / 2
Growth Percentiles
Compare your child's height to same-age peers. Most children grow along their percentile curve.
Normal Range:
- 3rd to 97th percentile
- Consistent tracking is key
Target Range
The expected height range (±8.5 cm) covering 95% of genetic variation from mid-parental height.
Factors Affecting Height:
- Nutrition and health
- Puberty timing
- Chronic illness
When to Use This Calculator
Growth Monitoring
- Annual height checks for children
- Tracking growth percentile trends
- Comparing to genetic potential
When to Seek Help
- Height below 3rd percentile
- Crossing percentile lines
- Growth velocity decline
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