Depression Severity Calculator
Assess depression severity using standardized PHQ-9 scoring methodology
About this calculator
The Depression Severity Calculator uses the standardized PHQ-9 (Patient Health Questionnaire-9) assessment tool to evaluate depression symptoms and severity levels. This clinically validated instrument helps individuals and healthcare providers identify depression severity on a scale from minimal to severe. By answering nine questions about mood, sleep, energy, and other symptoms experienced over the past two weeks, users receive an objective depression severity score that can guide treatment decisions and monitor progress over time.
How to use
Answer all nine PHQ-9 questions honestly, rating how often you've experienced each symptom over the past two weeks using the provided scale (not at all, several days, more than half the days, or nearly every day). Click calculate to receive your total score and corresponding depression severity level interpretation.
Frequently asked questions
What is the PHQ-9 scoring system?
PHQ-9 scores range from 0-27: minimal depression (0-4), mild (5-9), moderate (10-14), moderately severe (15-19), and severe depression (20-27).
Is this calculator a substitute for professional diagnosis?
No, this tool is for screening purposes only. Always consult healthcare professionals for proper diagnosis and treatment recommendations.
How often should I use this depression calculator?
The PHQ-9 can be used regularly to monitor symptoms, but consult your healthcare provider about appropriate frequency for your situation.