HOMA-B Beta Cell Function

Estimate beta cell function using HOMA-B = (20 x fasting insulin) / (fasting glucose - 3.5) x 100%. Normal approximately 100%; decreased in type 2 diabetes.

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

Estimate beta cell function using HOMA-B = (20 x fasting insulin) / (fasting glucose - 3.5) x 100%. Normal approximately 100%; decreased in type 2 diabetes

Each component has a specific meaning:

  • HOMA-B = / (fasting glucose - 3 — The homa-b = / (fasting glucose - 3 recorded for the scenario being assessed.

Note: Interpret the homa-b result against the thresholds and context described above.

How to Use

Enter the HOMA-B = / (fasting glucose - 3 for the scenario you are assessing. Estimate beta cell function using HOMA-B = (20 x fasting insulin) / (fasting glucose - 3.5) x 100%. Normal approximately 100%; decreased in type 2 diabetes. Use the homa-b result to inform your calculation.

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Frequently Asked Questions