BMI Formula:
From: | To: |
BMI (Body Mass Index) is a measure of body fat based on height and weight that applies to teenage males. For adolescents, BMI is age- and sex-specific and is often referred to as BMI-for-age. Percentiles are used to interpret BMI for teenagers.
The calculator uses the standard BMI formula adjusted for teenage male percentiles:
Where:
Percentile Interpretation:
Details: BMI screening for teenagers can identify potential weight problems, but is not a diagnostic tool. It helps track growth patterns and identify potential health risks.
Tips: Enter weight in kilograms, height in meters, and exact age (13-19 years). For accurate results, measure height without shoes and weight with minimal clothing.
Q1: Is BMI accurate for teenage athletes?
A: BMI may overestimate body fat in muscular athletes as it doesn't distinguish between muscle and fat mass.
Q2: How often should BMI be checked?
A: Annual BMI checks are recommended for teenagers as part of routine health assessments.
Q3: What if my teen is below the 5th percentile?
A: Consult a healthcare provider to rule out underlying health issues or growth disorders.
Q4: Are there better measures than BMI?
A: While BMI is a useful screening tool, skinfold thickness measurements or DEXA scans provide more accurate body composition analysis.
Q5: How does puberty affect BMI?
A: BMI naturally increases during puberty as part of normal growth and development patterns.