UK units are 25ml of 40% spirit, but my comment holds up if you adjust the numbers. Fun fact about UK units: they are equal to the alcohol % (ABV, half of US p

UK units are 25ml of 40% spirit, but my comment holds up if you adjust the numbers. Fun fact about UK units: they are equal to the alcohol % (ABV, half of US proof) in 1 litre of the liquid, so calculation is easy. For example a 6% ABV lager means there are 6 units in a litre, so a 500ml can is 3 units and a 330ml can is around 2 units.