BMI Calculator for Teenagers
A BMI calculator for teenagers helps assess body mass index during crucial growth and development years with age and gender-specific considerations. Use our free teen BMI calculator to understand healthy weight ranges for adolescents, accounting for growth spurts and developmental changes. This tool provides BMI assessments tailored to teenage physiology, helping parents and teens track healthy development. Calculate teen BMI instantly to monitor growth patterns and ensure appropriate weight management during adolescence.
Free • Age-specific • Growth considerations
How Teen BMI Calculation Works
Teen BMI Formula
BMI = Weight (kg) / Height (m)²
Underweight: BMI percentile < 5th
Healthy Weight: BMI percentile 5th - 85th
Overweight: BMI percentile 85th - 95th
Obese: BMI percentile ≥ 95th
Teen BMI uses age and gender-specific percentiles from CDC growth charts
Example Teen BMI Calculation
A 14-year-old girl weighing 110 lbs (50 kg) at 5'2" (158cm) has a BMI of 20.0, placing her in the 50th percentile for healthy weight. This indicates average healthy weight for her age and gender.
Percentile ranking shows how the teen compares to others of the same age and gender.
Benefits of Teen BMI Monitoring
Frequently Asked Questions
Is BMI accurate for teenagers?
BMI for teens uses age and gender-specific percentiles, making it more accurate than adult BMI. However, it doesn't account for muscle mass or body composition.
What is a healthy BMI for a 15-year-old?
Healthy BMI for teens falls between 5th and 85th percentile for their age and gender. This varies significantly as teens grow at different rates.
How often should teens check their BMI?
Teens should check BMI every 6-12 months during growth periods, or more often if concerned about weight changes or growth patterns.
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Calculate Your Teen's BMI
Get age and gender-specific BMI assessment for healthy teenage development and growth monitoring.
Use Teen BMI Calculator