Convert Bohr radius to chain Online | Free Length Converter

Bohr Radius

The Bohr radius is a fundamental physical constant that represents the average distance between the nucleus and the electron in a hydrogen atom in its ground state, according to the Bohr model of the atom.

• 
  

  Its value is approximately 5.29177 × 10⁻¹¹ meters (about 0.529 angstroms).

  
  
• 
  

  Named after physicist Niels Bohr, who introduced the model in 1913.

  
  
• 
  

  It sets a natural length scale in atomic physics and quantum mechanics.

  
  
• 
  

  Used to describe atomic sizes and electron orbitals.

  
  

Key facts:

• 
  

  Bohr radius ≈ 5.29 × 10⁻¹¹ m

  
  
• 
  

  Represents the typical size of a hydrogen atom’s electron orbit

  
  
• 
  

  Fundamental to quantum physics and atomic structure

  
  

The Bohr radius is essential for understanding atomic dimensions and quantum behavior of electrons.

Chain

A chain is a unit of length traditionally used in land surveying. The most common version is the Gunter’s chain, which equals 66 feet or 22 yards, approximately 20.1168 meters.

The chain was introduced by English clergyman Edmund Gunter in the 17th century to simplify land measurement. One chain consists of 100 links, each 0.66 feet long. It became a standard unit in British and American land surveying and was instrumental in defining land areas, especially in the U.S. Public Land Survey System.

Key Conversions:

• 
  

  1 chain = 66 feet

  
  
• 
  

  1 chain = 22 yards

  
  
• 
  

  1 chain ≈ 20.1168 meters

  
  
• 
  

  10 chains = 1 furlong

  
  
• 
  

  80 chains = 1 mile

  
  

Though now largely replaced by metric units and modern surveying tools, the chain still appears in older land deeds, maps, and rural property descriptions.