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DUDIT Calculator (Drug Use Screening)

Health

Score a simplified 6-question DUDIT-style drug use screening questionnaire instantly. A quick self-check tool, not a diagnosis of substance use disorder.

Reviewed by the thecalcu.com team · Last updated July 24, 2026

DUDIT-Style Total Score

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This calculator computes your DUDIT-Style Total Score from the values you enter.

Inputs
How often do you use drugs other than alcohol?Do you use more than one drug on the same occasion?How often unable to stop once started?How often did use stop you from doing what was normally expected?How often felt guilt or remorse after using?Has anyone expressed concern about your drug use?
Outputs
DUDIT-Style Total Score

What is a DUDIT Score?

The DUDIT Calculator scores a simplified, 6-question version of the Drug Use Disorders Identification Test, covering common warning signs associated with problematic drug use. It's a general self-reflection tool inspired by the structure of the full validated DUDIT instrument, not the complete clinical version.

This is a self-reflection tool, not a diagnosis. If you're concerned about drug use, please talk to a doctor, counselor, or addiction specialist. See also the AUDIT Score Calculator for the alcohol-focused equivalent.

Why Use a DUDIT Calculator?

Structured self-reflection questions can help organize thoughts about drug use patterns before a conversation with a healthcare professional. This calculator scores six commonly recognized warning signs instantly and privately.

Who Should Use This Calculator?

  • Anyone doing a private self-check-in on their drug use patterns.
  • People preparing to talk to a healthcare provider about substance use concerns.
  • Students of addiction studies or psychology learning about drug use screening structures.
  • Friends and family wanting to understand what kinds of patterns are worth discussing.

What Insights Does the DUDIT Calculator Give You?

The DUDIT-Style Total Score is the sole output, reflecting the sum of your six answers about drug use patterns. This calculator does not provide a clinical interpretation, any concerns about your score should be discussed with a healthcare professional.

How to use this DUDIT Score calculator

  1. Answer each of the six questions honestly, based on your own experience.
  2. Read your DUDIT-Style Total Score instantly.
  3. Use the result as a prompt for reflection or as a conversation starter with a healthcare professional.
Show formula & methodology ↓Show less ↑

Formula & Methodology

Questions 1-5 are scored 0-4; question 6 (others' concern) is scored 0, 2, or 4.

Total Score = Sum of all 6 item scores (range: 0-24)

Worked example, a set of answers summing to 2+1+1+0+2+0:

Total Score = 2+1+1+0+2+0 = 6

As with any screening score, interpretation and next steps are best discussed with a healthcare professional.

Frequently Asked Questions

What is the DUDIT?
DUDIT (Drug Use Disorders Identification Test) is a screening questionnaire designed to identify problematic drug use patterns, similar in structure to the alcohol-focused AUDIT. This calculator uses a simplified 6-question version covering common warning signs.
Is this the full validated DUDIT instrument?
This is a simplified 6-question version inspired by the structure and themes of the full DUDIT, which typically includes 11 questions. This simplified version is for general self-reflection, not the complete validated clinical instrument.
Is a high score a diagnosis of substance use disorder?
No, this calculator provides a simplified screening score for reflection only. Diagnosing any substance use disorder requires a comprehensive clinical evaluation by a qualified healthcare professional.
How is the score calculated?
Most questions are scored 0-4 based on frequency, while the final question about others' concern uses a 0/2/4 scale reflecting whether and when that concern was expressed, and all six scores are summed for a total.
What questions does this simplified DUDIT ask about?
The six questions cover use frequency, using multiple drugs together, loss of control, failure to meet expectations, guilt after use, and whether others have expressed concern about your drug use.
What should I do if my score is high?
Consider speaking with a doctor, counselor, or addiction specialist about your substance use, this calculator is designed to prompt that conversation, not replace professional evaluation and support.
Is my answer data stored anywhere?
No, this calculator runs entirely in your browser and does not transmit, store, or share your answers anywhere.
How is this different from the AUDIT Score Calculator?
The [AUDIT Score Calculator](/audit-score-calculator/) is specifically focused on alcohol, while this DUDIT-style calculator is focused on drugs other than alcohol, the two use a similar structure but ask about different substances.
Can this calculator be used for prescription medication misuse?
The general questions about frequency, control, and consequences can apply broadly, though this calculator is a general self-reflection tool and doesn't distinguish between different substance types in its scoring.
Where can I find support for drug use concerns?
Local health services, addiction helplines, and primary care doctors are all good starting points for anyone concerned about their own or someone else's drug use, professional support is available and can make a meaningful difference.
Also known as
DUDIT score calculatordrug use screening testdrug use disorders identification testsubstance use questionnaire