A 'unit' is 10ml of pure alcohol, here’s what we’re drinking regularly:

• 750ml bottle of wine at 12% is 9 units
• 440ml can of super strength larger is 4 units
• 1 litre bottle of 40% spirits is 40 units
• 700ml bottle of spirits of 37.5% spirits is 26.1/4 units
• 2 litre bottle of cider at 5.5% is 11 units