Convert perch to nautical mile (UK) Online | Free Length Converter

Perch

A perch is an old unit of length that is synonymous with the rod or pole, commonly used in land measurement and surveying. It measures 16.5 feet, 5.5 yards, or approximately 5.0292 meters.

The perch was widely used in England and later in the United States for measuring plots of land, especially before the widespread adoption of the metric system. It was also used to describe area when squared (square perch).

Key points:

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  1 perch = 16.5 feet

  
  
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  1 perch = 5.5 yards

  
  
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  1 perch ≈ 5.0292 meters

  
  
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  4 perches = 1 chain

  
  
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  40 perches = 1 furlong

  
  

While largely obsolete today, the term perch still appears in historical land deeds, legal documents, and some traditional surveying contexts.

Nautical Mile (UK)

The nautical mile (UK) is a unit of distance used primarily in maritime and aviation navigation in the United Kingdom. Traditionally, it was defined as 6,080 feet (about 1,853 meters), which is slightly longer than the modern international nautical mile of 1,852 meters. This UK definition was used before international standardization in 1929. Today, the international nautical mile is widely adopted, but the UK nautical mile historically played an important role in navigation and mapping.