Barleycorn
A barleycorn is an old English unit of length, traditionally based on the length of a grain of barley. It is defined as exactly 1/3 of an inch or approximately 8.47 millimeters.
Historically, the barleycorn was used for measuring small lengths and was also the basis for the inch, which was originally considered to be three barleycorns long. It played a role in various traditional measurements, including shoe sizing in English-speaking countries, where shoe sizes were sometimes expressed in barleycorn units.
Although obsolete as a formal unit, the barleycorn remains culturally significant, especially in shoe sizing systems.
Summary:
1 barleycorn = 1/3 inch ≈ 8.47 mm
Based on the length of a grain of barley
Used historically in small measurements and shoe sizing
Mostly of historical and cultural interest today
International Nautical League
The international nautical league is a standardized version of the nautical league used in maritime navigation. It is defined as exactly 3 international nautical miles, which equals 5,556 meters or about 3.45 miles. This standardization helps avoid confusion caused by variations in historical definitions of the league. While the nautical mile remains the primary unit in modern navigation, the international nautical league provides a consistent way to measure longer distances at sea when needed.
No conversions available for length.