Gleason Score to Grade Group Conversion

Convert Gleason score to ISUP Grade Group. GS <= 6 = Grade Group 1; GS 3+4 = GG2; GS 4+3 = GG3; GS 8 = GG4; GS 9-10 = GG5. Higher grade groups correlate with worse prognosis and guide treatment intensity.

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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 to Use

Enter the values for the scenario you are assessing. Convert Gleason score to ISUP Grade Group. GS <= 6 = Grade Group 1; GS 3+4 = GG2; GS 4+3 = GG3; GS 8 = GG4; GS 9-10 = GG5. Higher grade groups correlate with worse prognosis and guide treatment intensity. Use the gleason grade group result to inform your calculation.

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