UK units calculator
Units in a half pint of 4% lager
1.1 unitsUK standard units for this drink
Worked calculation
284 × 4 ÷ 1000 = 1.1
A half pint is 284ml, so it has half the units of a full pint at the same strength.
The NHS uses: units = millilitres × ABV (%) ÷ 1000. See the NHS guide to calculating alcohol units.
Compare with the weekly guideline
This drink is 1.1 units. The NHS low-risk guideline for regular drinking is not more than 14 units a week, spread over 3 or more days. The NHS calls this lower risk and does not call any amount “safe”. Read our guideline summary.
FAQ
How many units are in a half pint of 4% lager?
At 4% ABV and 284ml, there are about 1.1 UK units (284 × 4 ÷ 1000 = 1.1).
How is a UK alcohol unit calculated?
Units = volume in millilitres × ABV (%) ÷ 1000. This is the formula used by the NHS.
Is this a safe amount to drink?
This page only shows units, not safety. The NHS describes up to 14 units a week, spread over 3 or more days, as lower risk. The NHS does not call any amount of drinking safe. See our guideline page and NHS links for details.
Related drinks
Not medical advice. Typical ABV varies by brand, so check the label or enter your own values in the calculator.
