Alcohol Units Calculator
Calculate alcohol units in any drink from volume and ABV. Compare to UK weekly guidelines.
How to use this tool
- Enter volume and abv in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your alcohol units and the full breakdown beneath it.
UK alcohol units = volume (ml) × ABV% ÷ 1000. UK guidelines recommend no more than 14 units per week for men and women.
Frequently asked questions
- What is a UK alcohol unit?
- One unit contains 10 ml (8 g) of pure ethanol. A pint of 5% lager = 2.84 units; a 175 ml glass of 13% wine ≈ 2.3 units.
- What is the NHS weekly guideline?
- The NHS recommends not regularly drinking more than 14 units per week, spread over 3 or more days with some alcohol-free days.