Units in a double 50ml gin (37.5%)

Worked calculation

50 × 37.5 ÷ 1000 = 1.9

Gordon's London Dry Gin is 37.5% in the UK. Many craft gins are 40% to 47%, which adds up to 0.5 units to a double.

The NHS uses: units = millilitres × ABV (%) ÷ 1000. See the NHS guide to calculating alcohol units.

Compare with the weekly guideline

This drink is 1.9 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.

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FAQ

How many units are in a double 50ml gin (37.5%)?

At 37.5% ABV and 50ml, there are about 1.9 UK units (50 × 37.5 ÷ 1000 = 1.9).

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.

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Not medical advice. Typical ABV varies by brand, so check the label or enter your own values in the calculator.