Straight answers about units. No account needed.
Work out what you drank, find out how many units are in the thing in front of you, and get an honest answer on driving. Everything here is free to use and nothing asks you to sign up first.
- Based on UK guidelines
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How many units are in…
One page per question, each worked out from volume and strength rather than quoted from an average.

How many units are in a bottle of wine?
a standard 750ml bottle at 13% ABV

How many units are in a glass of wine?
a medium 175ml glass at 13% ABV

How many units are in a pint of beer?
a pint of 4% beer

How many units are in a pint of lager?
a pint of 4% lager

How many units are in a pint of Guinness?
a pint of Guinness Draught at 4.1% ABV

How many units are in a shot of vodka?
a 25ml single measure at 40% ABV

How many units are in a shot of whisky?
a 25ml single measure at 40% ABV

How many units are in a gin and tonic?
a single 25ml gin at 40% ABV

How many units are in a bottle of prosecco?
a 750ml bottle at 11% ABV

How many units are in a glass of prosecco?
a 125ml glass at 11% ABV

How many units are in a bottle of champagne?
a 750ml bottle at 12% ABV

How many units are in a bottle of beer?
a 330ml bottle at 4.5% ABV

How many units are in a can of beer?
a 440ml can at 4% ABV

How many units are in a pint of cider?
a pint of 4.5% cider

How many units are in a can of cider?
a 440ml can at 4.5% ABV

How many units are in a bottle of vodka?
a 700ml bottle at 37.5% ABV

How many units are in a bottle of gin?
a 700ml bottle at 40% ABV

How many units are in a pint of stout?
a pint of 4.2% stout

How many units are in a glass of champagne?
a 125ml flute at 12% ABV

How many units are in a glass of port?
a 50ml measure at 20% ABV
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