What is Fifth (unit)?
[[File:Bottle_of_Dewar's_whisky.jpg|thumb|A metric fifth of Dewar's [[Scotch whisky]]]] A '''fifth''' is a [[Unit of measurement|unit]] of [[volume]] which was used for beverages, in the United States. It was called fifth, because it was the fifth part of a [[Gallon|US liquid gallon]]. This means, that it held {{Convert|25+3/5|USoz|mL|0|abbr=off|sp=us|lk=on}}. In Europe, it was soon replaced by a bottle size of 750ml, which is one of the common sizes for bottles of [[wine]], [[Sparkling wine|sparkling wines]], but also of many [[Liquor|liquors]]. The size of 750ml is sometimes called '''metric fifth''', because it uses the [[metric system]]. [[Category:Units of volume]]