PHQ-9 Depression Screening

A validated 9-question screen for depression severity. Private, takes two minutes, and not stored unless you choose to.

✓ Reviewed by Dr. Poonam Sekhon Chahal · 28 May 2026

How this is calculated

The PHQ-9 sums your nine answers (each 0–3) into a 0–27 score, with validated severity bands. It is a screening tool, not a diagnosis.

Sources

  1. Kroenke K, Spitzer RL, Williams JB. The PHQ-9: validity of a brief depression severity measure. J Gen Intern Med 2001.
This calculator is for educational purposes and is not a substitute for professional medical advice, diagnosis, or treatment. The result is based on standard clinical formulas applied to the values you entered — your individual situation may need adjustments your doctor can make. Never disregard professional medical advice or delay seeking it because of something you read or calculated on healthcalculus.

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