What is a unit of alcohol?
If you do decide to drink when you’re pregnant, it's important to know how many units you are consuming.
One UK unit is 10 millilitres (ml) – or eight grams – of pure alcohol. This is equal to:
• half a pint of beer, lager or cider at 3.5% alcohol by volume (ABV: you can find this on the label)
• a single measure (25ml) of spirit, such as whisky, gin, rum or vodka, at 40% ABV
• half a standard (175ml) glass of wine at 11.5% ABV