Calculator · Mental health

Alcohol units calculator

UK units from volume and strength.

What it is for

Brief intervention; quantify weekly intake against the 14-unit guideline.

Use the working calculator

The working Alcohol units calculator calculator is on our calculators page. It is free and needs no account. Enter the values and it shows the result with the reading that goes with it.

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What you enter

The calculator asks for 3 items.

  • Volume per drink (mL)pint ≈ 568 · small wine 125 · spirit 25.
  • Strength (ABV) (%)
  • Number of drinks

How the result is read

The result is shown as Units in units. Formula: units = volume (mL) × ABV % ÷ 1000 × number of drinks.

The calculator reports one of these readings, with the action that goes with it: Within an occasion; Approaching weekly guideline; Above low-risk level.

Sources

These are the sources the calculator cites. Check the current version before relying on a threshold.

Related

PHQ-9 (depression)Depression severity over the last 2 weeks (9 items, 0–27).GAD-7 (anxiety)Generalised anxiety severity over the last 2 weeks (7 items, 0–21).AUDIT-C (alcohol screen)Brief alcohol-use screen (3 items, 0–12).AUDIT (full, 10-item)Detailed alcohol-use disorder screen (0–40).PHQ-2 (depression screen)Two-item depression case-finding (0–6).All calculators60 clinical scores and tools

For qualified clinicians. A score supports a clinical decision and does not make it: check the inputs, read the cited source, and use the tools in your clinical system for patient care where one is provided.