HOMA-IR Calculator

A score below 1.0 is considered optimal insulin sensitivity. Scores of 1.0 to 1.9 are in the normal range. Values above 2.0 suggest early insulin resistance, and above 2.9 indicate significant resistance that warrants medical evaluation.

In US units: (Fasting Insulin in uU/mL x Fasting Glucose in mg/dL) / 405. In SI units: (Fasting Insulin x Fasting Glucose in mmol/L) / 22.5. For example, insulin 10 uU/mL and glucose 90 mg/dL gives a HOMA-IR of 2.22.

Excess body fat (especially visceral abdominal fat), sedentary lifestyle, high-sugar diets, chronic stress, poor sleep, and genetic predisposition are primary contributors to elevated insulin resistance.

Yes. Insulin resistance often develops years before blood sugar rises enough to elevate A1c. HOMA-IR can identify metabolic dysfunction at an earlier, more reversible stage.

You should fast for 8 to 12 hours before the blood draw. Both fasting glucose and fasting insulin must be drawn from the same sample or at the same time for accurate results.

Regular aerobic exercise, losing 5% to 10% of body weight, reducing refined carbohydrates and added sugars, improving sleep quality, and managing stress have all been shown to improve insulin sensitivity.

Yes, embedding the HOMA-IR Calculator is free. Hit the "Embed" button on this page, adjust the width, height, and theme, then grab the iframe code. It works on WordPress, Wix, Squarespace, Shopify, and plain HTML pages. No registration needed. Full instructions at calculory.com/services/embed-calculators.