Height Calculator
This height calculator predicts a child's adult height based on linear regression analysis or the parents' mid-parental height. It also includes a height converter between feet/inches and centimeters.
Predicted Adult Height: -
This prediction is based on the Khamis-Roche method, which considers the child's current height, weight, age, and gender.
Average Height by Age
| Age | Boys (inches) | Girls (inches) |
|---|---|---|
| 2 years | 34.2 | 33.7 |
| 4 years | 40.3 | 39.5 |
| 6 years | 45.5 | 44.5 |
| 8 years | 50.4 | 49.5 |
| 10 years | 55.5 | 55.0 |
| 12 years | 60.5 | 61.0 |
| 14 years | 65.0 | 63.5 |
| 16 years | 68.0 | 64.5 |
| Adult | 69.5 | 64.0 |
Predicted Adult Height: -
This prediction is based on the mid-parental height method, which averages the parents' heights and adjusts for the child's gender.
Height Conversion Results
Use the converter to switch between US units (feet and inches) and metric units (centimeters).
About Height Prediction
Height prediction is an estimation of a child's adult height based on various factors. While genetics play a major role in determining height, environmental factors such as nutrition and health also contribute.
Child Height Predictor
The child height predictor uses the Khamis-Roche method, which considers the child's current height, weight, age, and gender. This method is most accurate for children between the ages of 4 and 9 who are free from any growth-related conditions or syndromes. The prediction has a margin of error of about 1.5 inches.
Parent Height Predictor
The parent height predictor uses the mid-parental height method. For boys, the formula is: (mother's height + father's height + 5 inches) / 2. For girls, it's: (mother's height + father's height - 5 inches) / 2. This method provides a rough estimate, with children often reaching a height within 4 inches of this prediction.
Factors Affecting Height
Several factors influence a child's eventual adult height:
- Genetics: The most significant factor, accounting for about 60-80% of a person's height.
- Nutrition: Adequate nutrition, especially during childhood and adolescence, is crucial for reaching full height potential.
- Health: Chronic illnesses or conditions can affect growth and final height.
- Hormones: Growth hormone and other hormones play key roles in growth and development.
- Environment: Socioeconomic factors and overall living conditions can impact growth.
Growth Patterns
Children grow at different rates, with growth spurts occurring at various times. Most children will:
- Double their birth length by age 4
- Grow about 2.5 inches per year between ages 4 and puberty
- Experience a growth spurt during puberty (typically ages 10-14 for girls and 12-16 for boys)
- Reach their adult height by age 14-15 for girls and 16-17 for boys