How it works
HOMA1-IR = fasting insulin (µIU/mL) × fasting glucose (mmol/L) ÷ 22.5. With glucose in mg/dL, divide the product by 405.
Enter fasting glucose and fasting insulin from the same blood draw. The result is an educational estimate and not a diagnosis.
HOMA1-IR estimate calculated from fasting values.
HOMA1-IR = fasting insulin (µIU/mL) × fasting glucose (mmol/L) ÷ 22.5. With glucose in mg/dL, divide the product by 405.
HOMA1-IR approximates insulin resistance from fasting laboratory values. There is no universal diagnostic cut-off: interpretation varies with population, assay and clinical context and should be performed by a health professional.
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It is a model-based estimate of insulin resistance derived from fasting glucose and insulin.