US fluid ounces
A US fluid ounces (sometimes referred to simply as an ounce) is a unit of volume used in the United States to measure liquids. One US fluid ounce is about 0.0296 liters.
UK pints
UK pints are volume units used in the United Kingdom for measuring liquids such as beer and milk. One UK pint is about 0.568 liters.
UK law requires draught beer and cider to be sold in pints, halves or thirds of a pint, and still allows milk in returnable bottles to be sold by the pint.