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Quick PHQ-9

Quick PHQ-9: calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.

β„Ή Reference calculation based on the published method. It does not replace a clinical examination or a doctor's decision.

Quick PHQ-9

1. Little interest or pleasure in doing things (0–3)
2. Feeling down, depressed or hopeless (0–3)
3. Trouble sleeping or sleeping too much (0–3)
4. Feeling tired or having little energy (0–3)
5. Poor appetite or overeating (0–3)
6. Feeling bad about yourself or a failure (0–3)
7. Trouble concentrating (0–3)
8. Moving or speaking slowly, or being fidgety or restless (0–3)
9. Thoughts of being better off dead or of self-harm (0–3)
PHQ-9
0of 27
Past 2 weeks: 0 = not at all, 1 = several days, 2 = more than half the days, 3 = nearly every dayQuick PHQ-9: calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.
Depression
Minimal
PHQ-2
0of 6

More about: Quick PHQ-9

What it calculates

The β€œQuick PHQ-9” calculator computes PHQ-9 in of 27 from 9 parameters: 1. little interest or pleasure in doing things (0–3), 2. feeling down, depressed or hopeless (0–3), 3. trouble sleeping or sleeping too much (0–3), 4. feeling tired or having little energy (0–3), 5. poor appetite or overeating (0–3), 6. feeling bad about yourself or a failure (0–3), 7. trouble concentrating (0–3), 8. moving or speaking slowly, or being fidgety or restless (0–3), 9. thoughts of being better off dead or of self-harm (0–3).

Used by professionals and patients to assess health metrics, dosages, and risks.

Example calculation

With parameters 1. Little interest or pleasure in doing things (0–3) = 0, 2. Feeling down, depressed or hopeless (0–3) = 0, 3. Trouble sleeping or sleeping too much (0–3) = 0, 4. Feeling tired or having little energy (0–3) = 0, 5. Poor appetite or overeating (0–3) = 0, 6. Feeling bad about yourself or a failure (0–3) = 0, 7. Trouble concentrating (0–3) = 0, 8. Moving or speaking slowly, or being fidgety or restless (0–3) = 0, 9. Thoughts of being better off dead or of self-harm (0–3) = 0 the result is 0 of 27 (Past 2 weeks: 0 = not at all, 1 = several days, 2 = more than half the days, 3 = nearly every day).

How to use

  1. Enter 1. little interest or pleasure in doing things (0–3), 2. feeling down, depressed or hopeless (0–3), 3. trouble sleeping or sleeping too much (0–3), 4. feeling tired or having little energy (0–3), 5. poor appetite or overeating (0–3), 6. feeling bad about yourself or a failure (0–3), 7. trouble concentrating (0–3), 8. moving or speaking slowly, or being fidgety or restless (0–3) and 9. thoughts of being better off dead or of self-harm (0–3) β€” each field above is adjustable with a slider.
  2. PHQ-9 (of 27) is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is BMI calculated?
BMI = weight (kg) / height (m)Β². Example: 70 kg / (1.75 m)Β² = 22.9. The WHO normal range is 18.5–24.9; below that is underweight, 25–29.9 is overweight, and 30+ is obese.
Is BMI accurate for everyone?
No. BMI does not distinguish muscle from fat, so athletes may show a high BMI with low body fat. It is also less reliable for teenagers, pregnant people, older adults, and very tall or short individuals.
What are the BMI categories?
Underweight: below 18.5. Normal: 18.5–24.9. Overweight: 25–29.9. Obese class I: 30–34.9; class II: 35–39.9; class III: 40+.
What is a better measure than BMI?
Body fat percentage, waist-to-height ratio (aim for under 0.5), and waist circumference give a clearer picture of health than BMI alone.

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