There is more than one type of Nautical Mile
There are a few different types of Nautical Mile. On this site we have conversions for US Nautical miles, UK Nautical miles and International Nautical miles. Please either select the appropriate unit on the selection above of click the required unit in the links below:
What is a nautical mile?
A nautical mile is a unit of measurement used in navigation and maritime travel. It is defined as one minute of latitude along any meridian, making it a unit of distance that varies slightly depending on the Earth's shape. The nautical mile is commonly used in aviation and shipping industries due to its convenience in measuring distances over water.
Historically, the nautical mile was derived from the circumference of the Earth, with one minute of latitude being divided into 60 equal parts to create the nautical mile. This unit of measurement is particularly useful for sailors and pilots as it allows for easy calculation of distances based on the Earth's coordinates. The nautical mile is also used in international treaties and agreements related to maritime boundaries and navigation regulations.
What is a furlong?
A furlong is a unit of measurement commonly used in the imperial system, particularly in the United Kingdom and the United States. It is primarily used to measure distances, especially in horse racing and agriculture. One furlong is equivalent to 220 yards or 660 feet, which is approximately 201.168 meters.
The origin of the term "furlong" can be traced back to Old English, where "furh" meant "furrow" and "lang" meant "long." This reflects the historical use of furlongs in measuring the length of a furrow in agricultural fields. In horse racing, furlongs are used to measure the distance between the starting point and the finish line. A racecourse typically consists of multiple furlongs, with the most common distances being 5 furlongs (5/8 of a mile) and 10 furlongs (1 mile).
While the use of furlongs has declined in everyday life, it still holds significance in certain fields. For example, in the United Kingdom, road signs often display distances in miles and furlongs, particularly in rural areas. Additionally, furlongs are occasionally used in land surveying and in some sports, such as rowing and track cycling. Overall, the furlong remains an interesting and historical unit of measurement that continues to have relevance in specific contexts.