No Results
No results found for your search. Please try another term.
Online Height Calculator - Predict Child's Adult Height
Use this easy-to-use online height calculator to estimate your child's adult height based on the mid-parental height formula. Suitable for boys and girls with inputs for parents' heights.
Expected Adult Height
6 feet 1 inch(es)
Oops! Something went wrong. Please try again.
What Is This Tool?
This height calculator uses the mid-parental height formula to estimate a child's probable adult height by factoring in the heights of both parents and the child's sex. It offers a simple way for parents, pediatricians, and individuals to predict adult height based on genetic averages.
How to Use This Tool?
- Enter the father's height in centimeters
- Enter the mother's height in centimeters
- Select the child's sex (boy or girl)
- Click the calculate button to see the predicted adult height
- Review the estimated height and understand that it is an approximation
Key Features
- Calculates predicted adult height using parents' heights and child's sex
- Applies separate formulas for boys and girls
- Works with height inputs in centimeters
- Provides a quick genetic-based height estimation
- Browser-based and easy to use
Examples
- To predict a boy's adult height with a father 180 cm tall and mother 165 cm tall, use: (180 + 165 + 13) ÷ 2 = 179 cm
- For a girl with the same parents, the calculation is: (180 + 165 - 13) ÷ 2 = 166 cm
- These results give reasonable estimates of adult height based on parental genetics
Common Use Cases
- Parents estimating their child's future height
- Pediatricians monitoring growth patterns
- Coaches assessing physical development potential
- Researchers analyzing growth trends
- Comparing expected adult height with actual growth outcomes
Tips & Best Practices
- Ensure heights are entered accurately in centimeters
- Use the correct formula based on the child's sex
- Remember this estimate does not account for environmental or health factors
- Use the result as a general guide rather than an exact prediction
- Consult healthcare professionals for detailed growth assessment
Limitations
- Does not include effects of nutrition or health conditions
- Ignores hormonal or environmental influences
- Cannot account for growth disorders or anomalies
- Predictions may vary by 5–10 cm from actual adult height
- Estimates based only on genetic averages using parental heights
Frequently Asked Questions
- What formula does the calculator use to estimate height?
- It uses the mid-parental height formula, which adds or subtracts 13 cm based on the child's sex and then averages the parents' heights.
- Can this calculator predict the exact adult height?
- No, it provides an approximate estimate based on genetics and does not account for other growth factors.
- Why does the formula add 13 cm for boys and subtract 13 cm for girls?
- The 13 cm adjustment accounts for average differences in adult height between boys and girls.
Key Terminology
- Father's Height
- The height of the male parent, used as an input in the height prediction formula.
- Mother's Height
- The height of the female parent, used along with the father's height for estimations.
- Sex of Child
- Determines which version of the mid-parental height formula is applied to estimate adult height.
- Predicted Adult Height
- The estimated final height of the child calculated based on parental heights and sex.
- Mid-Parental Height Formula
- A genetic-based formula that estimates a child's adult height from the average of the parents' heights with sex-based adjustments.