Teen BMI Calculator
Enhanced BMI Calculator
Get personalized health insights based on your BMI, age, and gender
Adding age provides more accurate health insights
Gender helps provide targeted recommendations
How to Use the Teen BMI Calculator
Our teen-specific BMI calculator uses CDC growth charts to provide accurate percentile rankings for adolescents ages 13-19. Unlike adult BMI calculators, this tool accounts for the rapid growth and development during teenage years, providing age and gender-specific interpretations. The calculator uses the standard BMI formula but compares results against extensive growth data from thousands of teens to determine where your BMI falls on the percentile scale.
Select your preferred unit system (Metric or Imperial)
💡 Teen Health Tip
Teens are still growing, so focus on healthy habits rather than weight numbers. Proper nutrition supports growth, brain development, and energy levels.
What the Teen BMI Calculator Calculates
The Teen BMI Calculator determines your Body Mass Index and compares it against CDC growth charts for adolescents of the same age and gender. This provides a percentile ranking that shows how your BMI compares to other teens nationwide. The calculator accounts for the normal growth patterns and body composition changes that occur during adolescence. You'll receive a detailed interpretation of your results, including whether you're underweight, healthy weight, overweight, or obese based on pediatric standards. The tool also provides age-appropriate health recommendations, information about healthy growth patterns, and guidance on when to consult healthcare providers. This is particularly useful for tracking growth during the critical teenage years and understanding how your weight relates to your overall health development.
Example Calculations for Teens
14-Year-Old Female Example
Input Values
BMI Percentile
BMI of 20.3 places at the 62nd percentile, which is within the healthy weight range for a 14-year-old girl.
16-Year-Old Male Athlete
Input Values
BMI Percentile
BMI of 22.2 places at the 78th percentile. Athletic teens may have higher BMI due to muscle mass.
Growth Spurt Example
Input Values
BMI Percentile
BMI of 20.8 places at the 45th percentile. During growth spurts, height often increases before weight catches up.
💡 Understanding Teen Results
These examples show how BMI percentiles work for teenagers. Your results may change as you grow and develop. Focus on building healthy habits rather than fixating on numbers. Always discuss concerns with a healthcare provider.
Frequently Asked Questions
Still have questions about BMI calculations?
Try the CalculatorTeen BMI Formulas & Growth Charts
Understanding how BMI is calculated and interpreted for teenagers
Formula
Scientific Background
Teen BMI interpretation uses CDC growth charts developed from national survey data collected between 1963-1994. These charts account for normal growth patterns during adolescence, where body composition changes rapidly. Unlike adult BMI categories, teen BMI is expressed as percentiles relative to same-age, same-gender peers. The 5th, 85th, and 95th percentiles correspond to underweight, overweight, and obesity categories respectively.
Important Note for Teens and Parents
This teen BMI calculator is for informational purposes only and should not replace professional medical advice. Adolescence involves rapid physical changes, and BMI percentiles can fluctuate during growth spurts. This tool does not account for muscle mass, bone structure, or individual growth patterns. Always consult with a pediatrician or healthcare provider before making any decisions about a teen's health, nutrition, or exercise routine. For teens with concerns about body image or eating habits, seek guidance from qualified healthcare professionals.