Tanner Sexual Maturity Rating

Determine Tanner stage (1-5) based on breast development in females or testicular volume and pubic hair in males. Stage 1 is prepubertal and Stage 5 represents adult maturity. Links staging to typical age ranges.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Determine Tanner stage (1-5) based on breast development in females or testicular volume and pubic hair in males. Stage 1 is prepubertal and Stage 5 represents adult maturity. Links staging to typical age ranges

Each component has a specific meaning:

  • Breast development in females or testicular volume — The breast development in females or testicular volume recorded for the scenario being assessed.
  • Pubic hair in males — The pubic hair in males recorded for the scenario being assessed.

Note: Interpret the tanner stage assessment result against the thresholds and context described above.

How to Use

Enter the breast development in females or testicular volume, pubic hair in males for the scenario you are assessing. Determine Tanner stage (1-5) based on breast development in females or testicular volume and pubic hair in males. Stage 1 is prepubertal and Stage 5 represents adult maturity. Links staging to typical age ranges. Use the tanner stage assessment result to inform your calculation.

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Frequently Asked Questions