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Depression Screening (PHQ-9)

Patient Health Questionnaire-9 for assessing depression severity.

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Depression Screening (PHQ-9)

PHQ-9 Depression scale

Complete Guide

Overview

Patient Health Questionnaire-9 for assessing depression severity. Use this calculator to get instant, accurate results based on standard health formulas and guidelines.

⚠️This tool is for educational and screening purposes only and is not a substitute for professional medical advice.

How to Use

1

Enter your details in the input fields above.

2

Select your preferred units (metric or imperial) if available.

3

Click the Calculate button to view your instant results and interpretation.

Formula & Calculation

Refer to the in-depth guide below for complete calculation formulas.

Benefits of Using This Calculator

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Accurate Results

Provides instant calculations for depression screening (phq-9).

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Clear Guidance

Compares your score against standard medical reference ranges.

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Fast & Free

No sign-up required — fast, private calculation on any device.

Pro Tips

  • Enter accurate measurements for the most reliable results.
  • Track your results over time to identify long-term trends.
  • Consult a qualified healthcare professional for medical interpretation.
In-Depth Guide

PHQ-9 Depression Screening Calculator: Assess Depression Severity

The Patient Health Questionnaire-9 (PHQ-9) is the gold standard screening tool used by doctors, psychologists, and researchers worldwide to measure depression severity and monitor treatment response over time.

PHQ-9 Score Interpretation

PHQ-9 ScoreDepression SeveritySuggested Action
0–4Minimal or NoneNo action required
5–9MildWatchful waiting; repeat at follow-up
10–14ModerateConsider counseling, therapy, or medication
15–19Moderately SevereActive treatment (psychotherapy ± medication)
20–27SevereImmediate medical/psychiatric evaluation

Screen your symptoms with our PHQ-9 Depression Screening Tool.

Important Considerations

  • PHQ-9 is a screening tool, not a clinical diagnosis — formal diagnosis requires assessment by a healthcare professional.
  • If you experience thoughts of self-harm or suicide, seek immediate emergency help or call a crisis hotline (988 in USA/Canada, 111 in UK, 9152987821 Tele-MANAS in India).

Final Thoughts

Self-assessment is the first step toward seeking support. High scores indicate it is time to talk to a doctor or therapist.

Screen your symptoms with our free PHQ-9 Calculator.