The gill or teacup is a unit of measurement for volume equal to a quarter of a pint. It is no longer in common use, except in regard to the volume of alcoholic spirits measures. In imperial units {| |- style="vertical-align: top;" | 1 imperial gill | ≡ 5 imperial fluid ounces |- | || ≡ imperial gallon |- | || ≡ imperial pint |- | || ≡ 142.0653125 mL |- | || ≈ 142 mL |- | || ≈ 1.2 US gills |- | || = 40 Imperial fluid drams |- | || ≡ Imperial cups |- | || ≈ 8.67 in3 |} In United States customary units {| |- style="vertical-align: top;" | 1 US gill | ≡ 4 US fl oz |- | || ≡ US gallon |- | || ≡ US pint |- | || ≡ US cup |- | || ≡ 8 tablespoons |- | || ≡ 24 teaspoons |- | || ≡ 32 US fluid drams |- | || ≡ 7 in3 |- | || ≡ 118.29411825 mL |- | || ≈ 118 mL |- | || ≈ imperial gills |} In Great Britain, the standard single measure of spirits in a pub was in England, and in Scotland, while the was also a common measure in Scotland, and still remains as the standard measure in pubs in Ireland. After metrication, this was replaced by measures of either , at the discretion of the proprietor. A spirit measure in the Isle of Man is still defined as . Half of a gill is a jack, or an eighth of a pint. But in northern England, a quarter pint could also be called a jack or a noggin, rather than a gill, and in some areas a half pint could be called a gill, particularly for beer and milk. In Ireland, the standard spirit measure was historically gill. In the Republic of Ireland, it still retains this value, though it is now legally specified in metric units as . In Scotland, there were additional sizes: big gill = wee gill = wee half gill = nip= In popular culture There are occasional references to a gill in popular culture, such as in: Literature In L. Frank Baum's The Patchwork Girl of Oz, one of the ingredients required for a magic spell is a gill of water from a dark well. In chapter 19, the obscure unit