Gill

A gill (symbol: gi) is a traditional unit of volume equal to one quarter of a pint or four fluid ounces. In the US customary system, a gill equals approximately 118.294 milliliters, whereas the British imperial gill equals approximately 142.065 milliliters. Historically used for measuring small quantities of spirits, wine, and milk, the gill has largely been replaced in modern trade by metric packaging, though it remains a recognizable element of traditional British pub culture history.