Insomnia Severity Index (ISI) Calculator

Score the seven ISI questions to gauge how severe your insomnia is.

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ISI total14 / 28
SeveritySubthreshold insomnia

The ISI is a screening tool. Moderate or severe scores are worth discussing with a clinician, since CBT for insomnia is an effective treatment.

NoneSubthreshold7Moderate14Severe2114

Medical disclaimer: This tool is for education and is not medical advice. Read more.

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Frequently asked questions

What does the Insomnia Severity Index (ISI) Calculator do?

Score the seven ISI questions to gauge how severe your insomnia is. Enter your values and the result and chart update instantly.

How accurate is it?

It uses published, widely used formulas. Results are estimates for education and planning, not a diagnosis. Talk to a qualified clinician about decisions affecting your health.

Is my information stored or shared?

No. All calculations run in your browser and nothing you type is sent to a server or saved.

What can I search to find this tool?

People find it by searching for: am i an insomniac; insomnia severity score; isi questionnaire.

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