What is a Projected Height Calculator?
A projected height calculator estimates adult height using scientific methods considering genetic factors and growth patterns. This tool helps parents track child development, athletes assess growth potential, and individuals understand their genetic predisposition. Our calculator uses the Tanner-Whitehouse method combined with mid-parental height calculation for accurate predictions.
Height Prediction Calculator
Height Prediction Formula
The calculator uses the mid-parental height formula with standard deviation adjustment:
Boys: (Father's height + Mother's height + 13cm) ÷ 2 ± 8.5cm
Girls: (Father's height + Mother's height - 13cm) ÷ 2 ± 8.5cm
Height Percentile Chart
| Age | 5th %ile | 50th %ile | 95th %ile |
|---|---|---|---|
| 2 | 81 | 86 | 91 |
| 5 | 102 | 109 | 116 |
| 10 | 132 | 138 | 145 |
| 15 | 162 | 170 | 178 |
Advantages & Disadvantages
Advantages:
- Non-invasive method for height prediction
- Helps identify growth abnormalities early
- Uses proven genetic calculation methods
- Provides growth potential awareness
- Helps in nutritional planning
Disadvantages:
- Doesn't account for chronic illnesses
- Environmental factors not considered
- Accuracy reduces after puberty
- No bone age analysis included
- Ethnic variations not calculated
FAQs
How accurate is height prediction?
Height prediction accuracy varies ±4 inches due to environmental factors, nutrition, and health conditions. Genetic calculations account for 60-80% of height determination.
Can adults use this calculator?
While designed for children, adults can estimate genetic potential, but actual height may differ based on childhood nutrition and health factors.
Does puberty affect results?
Yes, early/late puberty significantly impacts final height. Our calculator adjusts predictions based on current age and growth stage.