An imperial pint is a unit of volume commonly used in the United Kingdom and some other countries for measuring liquids, particularly beer. It is defined as 20 fluid ounces, which is approximately 568 milliliters. The imperial pint is larger than the US pint, which is 16 fluid ounces or about 473 milliliters. The imperial pint is often served in traditional pubs and is a standard measure for draft beer. It is also used in various recipes and food measurements in the UK. The term "pint" itself has historical roots, dating back to the Middle Ages, and is still widely recognized today.