BMI Calculator for Teens
CDC’s Child and Teen BMI Calculator is built specifically for ages 2–19 and uses BMI-for-age percentiles by sex. It r...

What BMI Calculator for Teens does
The CDC Child and Teen BMI Calculator determines body mass index and corresponding percentile for users aged 2 through 19, outputting BMI, percentile rank, and weight category based on sex-specific growth charts. The result includes a plotted position on CDC reference curves and a clear interpretation of whether the measurement falls below the 5th, between the 5th and 85th, between the 85th and 95th, or at or above the 95th percentile. The page provides a brief explanation of BMI as a health indicator and notes that results may vary slightly due to rounding differences, while emphasizing that the tool is not a substitute for professional medical advice.
How to use the Centers for Disease Control and Prevention (CDC) BMI Calculator for Teens
- 1
Select the child's age in years and months
- 2
Choose the sex (male or female) from the dropdown
- 3
Enter height using the supported unit format (inches or centimeters)
- 4
Enter weight using the supported unit format (pounds or kilograms)
- 5
Click Calculate to view BMI, percentile, and weight category
Best for
Parents, guardians, or educators who need a quick, free assessment of a child's growth pattern using established CDC percentiles and growth charts.
Limitations
- Results are based on CDC percentile curves and may differ slightly from other programs due to rounding
- The tool is designed for ages 2–19 only; older users must use the Adult BMI Calculator
- No direct medical diagnosis or treatment recommendations are provided
BMI Calculator for Teens FAQ
- Can this calculator diagnose obesity or other health conditions?
- No, the calculator provides a BMI percentile and weight category based on CDC growth charts; it is not a medical diagnosis and should be considered alongside other health factors.
- Why do results sometimes differ from other BMI calculators?
- Because of possible differences in rounding for age, weight, and height, the results from this CDC calculator may vary slightly from other programs or tools.
- Is the tool suitable for children under age 2?
- No, the calculator is specifically designed for children and teens aged 2 through 19; younger children require different growth assessment methods.
- Do I need to create an account or pay to use this calculator?
- No, the CDC Child and Teen BMI Calculator is fully free to use online and does not require an account or subscription.
More BMI Calculator for Teens tools
- 01NHSnhs.uk
This NHS calculator is designed for children and teenagers aged 2–17. It asks for age, sex, height, and weight, then ...
- 02WebMDwebmd.com
WebMD’s Kids BMI Calculator helps parents check a child’s BMI category using sex, age, height, and weight inputs. It ...
- 03Omni Calculatoromnicalculator.com
Use our BMI calculator for teens to assess body mass index and learn about healthy BMI ranges for ages 10-20.
- 04Calculator.netcalculator.net
Calculator.net’s BMI Calculator accepts ages 2–120 and includes child/teen BMI interpretation references for ages 2–2...
- 05Calculator Soupcalculatorsoup.com
CalculatorSoup’s BMI tool includes both adult and child BMI modes, with child and teen interpretation based on CDC pe...
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