How accurate is the child height predictor?

The mid-parental height method is accurate within ±10 cm (4 inches) for about 95% of children. Accuracy is highest when both parents are of average height. Factors like nutrition, health, and environment can cause variations from predictions.

When do children stop growing?

Girls typically stop growing around 14-16 years old, about 2 years after their first period. Boys usually stop growing around 16-18 years old. However, some individuals may continue growing into their early 20s. Growth plates close when final height is reached.

Can nutrition affect my child's height?

Yes, nutrition plays a crucial role in reaching genetic height potential. Adequate protein, calcium, vitamin D, and overall balanced nutrition during growth years are essential. Malnutrition or chronic deficiency can prevent children from reaching their full genetic height.

What if parents are very different heights?

The calculator averages parental heights, so children of parents with large height differences will likely fall somewhere in between. The child could be closer to either parent's height, but the mid-parental formula provides a reasonable estimate.

Why is there a 13 cm adjustment for gender?

The 13 cm (5 inch) adjustment accounts for the average height difference between adult men and women. This adjustment helps predict more accurate heights based on the child's gender, as boys typically grow taller than girls.

Can my child be taller than predicted?

Yes, children can exceed predictions, especially with optimal nutrition, good health, and adequate sleep during growth years. The prediction is an estimate with a range. Some children naturally fall at the higher end of their genetic potential.

What if my child seems shorter than peers?

Children grow at different rates. Some are "late bloomers" who grow later than peers. If concerned about growth, consult a pediatrician. They can assess growth patterns, check for underlying conditions, and determine if evaluation by a pediatric endocrinologist is needed.

Do grandparents' heights matter?

Yes, grandparents' heights can influence a child's height as genetic traits can skip generations. However, the mid-parental formula using parents' heights is the most practical and commonly used method. For more detailed genetic analysis, consult a healthcare provider.

Child Height Predictor

Free child height calculator to predict your child's adult height based on parents' heights. Get accurate height predictions using the mid-parental height method with scientifically validated formulas. Includes height range estimates and growth insights.

Calculate

Child's Gender

Boy

Girl

Unit

Centimeters (cm)

Feet & Inches

Father's Height

Mother's Height

Predicted Adult Height

Enter parents' heights and click calculate to predict child's adult height

Child Height Predictor Tool Introduction

Curious about how tall your child will be? Our Child Height Predictor uses scientifically validated formulas to estimate your child's potential adult height based on biological parents' heights and the child's gender. This medically recognized tool employs the mid-parental height method, trusted by pediatricians and growth specialists worldwide to provide accurate height predictions.

This advanced height calculator takes into account the genetic factors that influence growth, providing not just a single prediction but a realistic height range (typically ±4 inches or 10 cm) that accounts for natural variation. The calculator uses different formulas for boys and girls, recognizing the biological differences in growth patterns and final adult heights between genders.

Perfect for curious parents, child development tracking, pediatric growth monitoring, understanding genetic height potential, and planning for your child's future. While genetics account for 60-80% of final height, our calculator also provides insights into other factors that influence growth including nutrition, health conditions, sleep quality, physical activity, and hormonal balance.

Get instant results showing your child's predicted adult height, minimum and maximum height range, and understand how parental genetics influence growth. The calculator supports both metric (centimeters) and imperial (feet and inches) units for convenience. All calculations follow established pediatric growth formulas used by healthcare professionals globally, ensuring accuracy and reliability. Learn about growth stages from infancy through puberty and discover what factors can help your child reach their full genetic height potential.

Child Height Predictor User Guide

Getting Started

Using the Child Height Predictor is simple and provides instant height predictions:

How to Use

Select Child's Gender: Choose boy or girl as formulas differ
Enter Father's Height: Input the biological father's height
Enter Mother's Height: Input the biological mother's height
Select Unit: Choose between cm or feet/inches
Calculate: Click to see predicted adult height range

Understanding Your Results

Predicted Height: Most likely adult height based on mid-parental formula
Height Range: Minimum to maximum potential height (±10 cm / 4 inches)
Percentile Information: How the predicted height compares to population

Calculation Methods

For Boys:

Predicted Height = (Father's Height + Mother's Height + 13 cm) ÷ 2

For Girls:

Predicted Height = (Father's Height + Mother's Height - 13 cm) ÷ 2

Factors Affecting Height

Genetics: 60-80% of height is determined by genes
Nutrition: Adequate nutrition during growth years is crucial
Health: Chronic illnesses can affect growth
Hormones: Growth hormone and thyroid function
Sleep: Growth hormone is released during deep sleep
Physical Activity: Exercise promotes healthy growth

Growth Stages

Infancy (0-2 years): Rapid growth, about 25 cm first year
Childhood (2-10 years): Steady growth, 5-6 cm per year
Puberty (10-18 years): Growth spurt, varies by individual
Girls: Usually stop growing around 14-16 years
Boys: Usually stop growing around 16-18 years

Important Notes

This is an estimate - actual height may vary by ±10 cm (4 inches)
Predictions are most accurate for children of average-height parents
Environmental factors can significantly influence final height
Consult pediatrician if concerned about growth patterns
Regular growth monitoring is important during childhood
Growth charts provide more detailed tracking over time

Frequently Asked Questions

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