Teen BMI Calculator – Track Healthy Growth
During adolescence, bodies change rapidly. A simple BMI calculation isn't enough; it must be compared to peers of the same age and gender. Our Teen BMI Calculator uses CDC-standardized growth charts to provide an accurate percentile and health status classification to help parents and teens monitor healthy development effectively.
How to Understand BMI for Teenagers
Body Mass Index (BMI) is a tool used to determine if a person's weight is appropriate for their height. For adults, BMI categories are fixed. However, for children and teens, BMI is age- and gender-specific because the amount of body fat changes with age and differs between boys and girls.
The BMI Calculation Formula
The standard metric formula is: $BMI = \frac{weight (kg)}{height (m)^2}$. For adolescents, this raw number is then plotted on a growth chart to find the percentile ranking.
What Do the Percentiles Mean?
- Underweight: Less than the 5th percentile.
- Healthy Weight: 5th percentile to less than the 85th percentile.
- Overweight: 85th to less than the 95th percentile.
- Obese: 95th percentile or greater.
Why Monitoring Growth Matters
Tracking BMI during the teenage years helps identify potential weight issues early. Maintaining a healthy weight reduces the risk of type 2 diabetes, heart disease, and joint stress later in life. Always consult a healthcare professional for a complete health assessment.