DASS-21 Calculator
The Depression, Anxiety and Stress Scale (DASS-21) is a 21-item self-report instrument that measures three related but distinct symptom domains: depression, anxiety, and stress. Because it separates stress from anxiety, it can be useful for distinguishing everyday tension from more specific anxious or depressive symptoms.
How the score is calculated
Each item is rated 0–3 for how much it applied to you over the past week. Items are grouped into three seven-item subscales (Depression, Anxiety, Stress). Each subscale's raw score is doubled, per the standard DASS-21 scoring convention, to align with the full 42-item DASS severity ranges.
Important limitations
- The DASS-21 measures general emotional distress along three dimensions; it does not diagnose a specific disorder.
- It is most informative when compared across time or alongside a clinical interview, rather than as a one-off score.
- Physical anxiety symptoms (e.g., a racing heart) can overlap with unrelated medical causes.
Frequently Asked Questions
What is the DASS-21?
A 21-item questionnaire measuring depression, anxiety, and stress as three related but separate emotional states, using seven items per domain.
How is the DASS-21 scored?
Each domain's seven item scores are summed and then doubled, giving a score from 0–42 per domain that can be compared against published severity ranges.
Why does the DASS-21 separate stress from anxiety?
Stress captures tension, irritability, and difficulty relaxing, which can occur without the specific physiological anxiety symptoms the anxiety subscale targets.
Is the DASS-21 a diagnostic tool?
No — it screens for the severity of distress across three domains and is not a substitute for a clinical evaluation.