Fifths to US liquid gallons Conversion

A fifth is a unit of volume formerly used for distilled beverages in the United States, equal to one fifth of a US liquid gallon,  ⁴⁄₅ quart, or 25 ³⁄₅ US fluid ounces (757 ml); it has been superseded by the metric bottle size of 750 ml, sometimes called a metric fifth, which is the standard capacity of wine bottles world-wide and is approximately 1% smaller.

conversion table

The US gallon is legally defined as 231 cubic inches, which is exactly 3.785411784 liters. A US liquid gallon of water weighs about 8.34 pounds or 3.78 kilograms at 62 °F (17 °C), making it about 16.6% lighter than the imperial gallon. There are four quarts in a gallon, two pints in a quart and 16 US fluid ounces in a US pint, which makes the US fluid ounce equal to  ¹⁄₁₂₈ of a US gallon. In order to overcome the effects of expansion and contraction with temperature when using a gallon to specify a quantity of material for purposes of trade, it is common to define the temperature at which the material will occupy the specified volume. For example, the volume of petroleum products and alcoholic beverages are both referenced to 60 °F (16 °C) in government regulations.

conversion table