Audit-C Calculator

Written by Great Medico

Updated September 24, 2026 •2 min read

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Exposure and screening numbers can be useful when they are treated as context rather than judgment. Audit-C Calculator summarizes the specific behaviors or amounts entered into one transparent result.

What this calculator does

Audit-C Calculator uses Sex, How often do you have a drink containing alcohol?, How many standard drinks on a typical drinking day?, and How often do you have ≥6 drinks on one occasion? to calculate AUDIT-C. It is built around the exact fields displayed in this plugin rather than a generic version of the topic. Substance-use calculators can organize exposure or screening information, but they cannot determine impairment, withdrawal safety, diagnosis, or prognosis on their own. When there is risk of overdose or dangerous withdrawal, clinical care takes priority over the score.

How to use it

Enter or select Sex, How often do you have a drink containing alcohol?, How many standard drinks on a typical drinking day?, and How often do you have ≥6 drinks on one occasion?. Use the units offered by the calculator and choose the option that matches the actual clinical or timing situation. Check date entries and laboratory units before relying on the output. Keep amounts, dates, and questionnaire answers within the same exposure or screening timeframe requested by the tool.

How the calculation works

AUDIT-C is the sum of the scores selected for its three alcohol-consumption questions. This implementation uses a positive-screen cutoff of 4 points for males and 3 for females. The total is a screening result, not a diagnosis of alcohol use disorder.

Example

Using the sample values prefilled in this calculator, the primary result is 0 points (Below common screening cutoff). This worked example shows how the plugin’s own default inputs flow through the implemented method; replace them with the correct patient, laboratory, imaging, or personal values before interpreting a result.

How to interpret the result

A result at or above the calculator’s sex-specific cutoff is a positive alcohol screen and signals the need for a fuller assessment. It does not establish dependence or specify treatment severity.

Limitations and notes

AUDIT-C is a screening tool and cutoff practices vary by population and health system. A positive screen should lead to further assessment rather than a diagnosis based only on three questions; a negative screen can also miss clinically important alcohol-related problems.