The DASS-21 (Depression, Anxiety, and Stress Scale – 21 items) is a widely used self-report questionnaire that screens for the emotional states of depression, anxiety, and stress. Each of the 21 items is rated on a 4-point scale from 0 (did not apply to me at all) to 3 (applied to me very much, or most of the time). The DASS-21 is not a clinical diagnosis, but it provides a quick, evidence-based snapshot of your current distress levels.
This calculator lets you enter your responses for all 21 items, automatically sums the scores for each subscale, and then doubles them to match the full-length DASS-42 scoring. You'll see your raw subscale totals, the doubled scores, and the corresponding severity labels (Normal, Mild, Moderate, Severe, Extremely Severe) based on the official cut-offs. It's ideal for students, therapists, coaches, and anyone tracking their emotional well-being over time.
📋 Enter Your Responses
Rate each statement based on how much it applied to you over the past week. 0 = Did not apply, 1 = Applied to some degree, 2 = Applied to a considerable degree, 3 = Applied very much.
Depression Items (D)
Anxiety Items (A)
Stress Items (S)
📊 Your Results
How to Use This Tool
Simply select the number (0, 1, 2, or 3) that best describes how much each statement applied to you over the past week. There are no right or wrong answers — go with your first instinct. Once you've answered all 21 items, click Calculate Scores. The calculator will sum your responses for each subscale (Depression, Anxiety, Stress), double the totals to align with the full-length DASS-42, and display the corresponding severity category.
If you're using this for repeated tracking, try to complete it at the same time of day and in a similar context each time. This helps reduce situational noise and makes your scores more comparable over weeks or months.
How the Scoring Works
The DASS-21 is a shortened version of the 42-item DASS. Each of the 21 items belongs to one of three subscales: Depression (items 3, 5, 10, 13, 16, 17, 21), Anxiety (items 2, 4, 7, 9, 15, 19, 20), and Stress (items 1, 6, 8, 11, 12, 14, 18). Each item is scored 0–3, so each subscale raw total ranges from 0 to 21. To make scores comparable to the original DASS-42, the raw total is multiplied by 2, giving a final subscale score from 0 to 42.
The severity labels are based on the official DASS cut-offs:
| Severity | Depression | Anxiety | Stress |
|---|---|---|---|
| Normal | 0–9 | 0–7 | 0–14 |
| Mild | 10–13 | 8–9 | 15–18 |
| Moderate | 14–20 | 10–14 | 19–25 |
| Severe | 21–27 | 15–19 | 26–33 |
| Extremely Severe | 28+ | 20+ | 34+ |
These cut-offs are widely used in research and clinical practice. They were derived from the original DASS-42 normative data and are referenced in the DASS Wikipedia article and the official DASS website at UNSW Sydney.
Worked Example
Scenario: A user rates their Depression items as 1, 2, 0, 1, 1, 0, 2. The raw sum is 1+2+0+1+1+0+2 = 7. Doubled score = 7 × 2 = 14, which falls in the Moderate range for Depression.
For Anxiety, suppose the raw sum is 5. Doubled = 10, which is Moderate. For Stress, raw sum 12 → doubled 24, which is Moderate. This pattern might suggest a moderate overall distress level, but remember that the DASS-21 is a screening tool, not a diagnostic instrument.
Tips for Accurate Self-Assessment
- Be honest: There's no benefit to under- or over-reporting. The tool is only useful if your answers reflect your true experience.
- Focus on the past week: The DASS-21 asks about the last 7 days. Don't try to average your whole life — just the recent period.
- Don't overthink: If you're between two numbers, choose the one that feels closer. Most people find their first instinct is the most accurate.
- Track over time: A single score is a snapshot. Weekly or monthly tracking can reveal trends that a one-off score can't.
Limitations & When to Seek Help
The DASS-21 is a screening measure, not a diagnostic tool. It cannot tell you whether you have depression, an anxiety disorder, or a stress-related condition. Only a qualified mental health professional can make a diagnosis after a comprehensive assessment. If your scores are in the Severe or Extremely Severe range, or if you're struggling to cope, please reach out to a professional. In a crisis, contact your local emergency services or a crisis hotline.
Frequently Asked Questions
Why do I need to double my score?
The DASS-21 was designed as a short form of the 42-item DASS. Doubling the subscale totals makes the scores directly comparable to the original DASS-42 norms and cut-offs. This is standard practice and is what most clinicians and researchers do.
Can I use this for a diagnosis?
No. The DASS-21 is a screening tool. It helps you and a professional understand your current emotional state, but it cannot diagnose any condition. Always consult a qualified professional for diagnosis and treatment.
How often should I take it?
There's no strict rule, but many people find weekly or monthly tracking helpful. If you're in therapy, your therapist may suggest a specific frequency. Avoid taking it multiple times a day — that usually just adds noise.
What if my scores are high?
High scores don't mean you're "broken." They indicate that you're experiencing significant distress right now. Consider talking to a therapist, counselor, or doctor. You might also explore stress-reduction techniques like mindfulness, exercise, or sleep hygiene. For related tools, you might find our bedtime calculator useful for improving sleep routines, which can affect mood.