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Free health tests and calculators

40 free screeners and calculators. Each one runs in your browser, gives a plain-language result, and points you to clinics that offer the treatment. None of them is a diagnosis.

  • No sign-up
  • Answers never leave your device
  • Sources cited on every page
  • Instant results

Hormones and metabolism

Screeners for hormone transitions, thyroid and metabolic patterns. Each one explains what it can and cannot tell you before you see a number.

Sleep, energy and stress

Sleep quality, fatigue and stress load, scored with published scales where they exist and labelled as educational where they do not.

Inflammation, pain and autoimmunity

Chronic pain, joint and autoimmune symptom patterns. These screeners organise what you notice so a clinician can take it further.

Longevity and heart

Cardiovascular risk, biological age and fitness markers, computed from published equations with the paper named on every page.

Sexual health, hair and skin

Erectile function, libido, hair loss and skin screeners adapted from published questionnaires.

Treatment fit

Am I a candidate? Quizzes that sort recognised indications from investigational uses and flag the safety questions to raise with a clinician.

Calculators

Published formulas, implemented exactly and shown with their source: body composition, hormones, lipids, liver, blood pressure and dosing arithmetic.

How to use these tests

Every screener and calculator here is educational. A result describes a pattern in your answers or a number from a published formula; it does not diagnose a condition or tell you which treatment to choose. Bring the result to a clinician who can look at your history and your labs.

Your answers are scored in your browser and never sent to us. We count only that a test was started or finished and which result band it landed on, so we can see which tests help.

To find listings rather than tests, browse the US clinic directory. A listing is not a treatment endorsement.