Body Metrics & FitnessTool Review

BMI Calculator for Teens

Provided byCenters for Disease Control and Prevention (CDC)cdc.gov

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

Screenshot of BMI Calculator for Teens on Centers for Disease Control and Prevention (CDC)
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About this tool

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.

Step by step

How to use the Centers for Disease Control and Prevention (CDC) BMI Calculator for Teens

  1. 1

    Select the child's age in years and months

  2. 2

    Choose the sex (male or female) from the dropdown

  3. 3

    Enter height using the supported unit format (inches or centimeters)

  4. 4

    Enter weight using the supported unit format (pounds or kilograms)

  5. 5

    Click Calculate to view BMI, percentile, and weight category

Is it right for you

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
Questions

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.
Other Options

More BMI Calculator for Teens tools

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  2. WebMD
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  3. Omni Calculator
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    Use our BMI calculator for teens to assess body mass index and learn about healthy BMI ranges for ages 10-20.

  4. Calculator.net
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