HOMA IR Calculator

Work out homa ir instantly with clear inputs, formula shown and shareable results.

About HOMA IR Calculator

Multiplies fasting glucose by fasting insulin and divides by 405 to give the HOMA-IR index of insulin resistance, with QUICKI as a cross-check.

Formula

HOMA-IR

HOMA-IR = fasting glucose (mg/dL) x fasting insulin (microU/mL) / 405, or glucose (mmol/L) x insulin / 22.5; QUICKI = 1 / (log insulin + log glucose)

Worked example

With the default values below, HOMA IR Calculator returns HOMA-IR of 2.47. Change any input above and every figure here is recalculated in your browser.

Inputs used

Fasting glucoseaccepts 40–400 mg/dL: 100 mg/dL
Fasting insulinaccepts 0.5–100 microU/mL: 10 microU/mL

Results

HOMA-IR: 2.47
QUICKI index: 0.333
Interpretation band: Early insulin resistance (1.9-2.9)

Step by step

1Values used
2HOMA-IR
3HOMA-IR= 2.47
4QUICKI index= 0.333
5Interpretation band= Early insulin resistance (1.9-2.9)

Assumptions and limits

The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
This is an estimate for general information and not professional medical advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.

Frequently Asked Questions

Why 405?

It is the product of the normal reference values (glucose 100 mg/dL and insulin 5 microU/mL) that scales a healthy result to about 1.

Are the bands universal?

No. Cut-offs vary between assays and populations, so local reference ranges matter.