JBS3 Heart Age Calculation

Calculate cardiovascular heart age and lifetime risk using the JBS3 tool to communicate risk to patients in an intuitive manner.

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

Calculate cardiovascular heart age and lifetime risk using the JBS3 tool to communicate risk to patients in an intuitive manner

Each component has a specific meaning:

  • JBS3 tool — The jbs3 tool recorded for the scenario being assessed.

Note: Interpret the jbs3 heart age result against the thresholds and context described above.

How to Use

Enter the JBS3 tool for the scenario you are assessing. Calculate cardiovascular heart age and lifetime risk using the JBS3 tool to communicate risk to patients in an intuitive manner. Use the jbs3 heart age result to inform your calculation.

Frequently Asked Questions