Convert quarter (UK) [qr (UK)] to slug Online | Free weight-and-mass Converter

Quarter (UK) [qr (UK)]

The quarter (UK), abbreviated as qr (UK), is a traditional British unit of weight equal to 28 pounds (about 12.7 kilograms).

It is one-quarter of the UK (imperial) hundredweight, which is 112 pounds. The quarter was commonly used in the UK for weighing agricultural products and other bulk goods.

Summary:

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  1 UK quarter = 28 pounds (12.7 kg)

  
  
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  Equal to ¼ of the UK hundredweight (112 pounds)

  
  
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  Used historically in British trade and agriculture

  
  

Slug

The slug is a unit of mass used primarily in the U.S. customary system and British engineering contexts.

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  1 slug = 32.174 pounds (lb) (mass)

  
  
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  Equivalent to approximately 14.5939 kilograms (kg)

  
  
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  Defined so that when a force of one pound-force (lbf) acts on a mass of one slug, it accelerates at 1 ft/s² (using $F = ma$ in imperial units).

  
  

Key Facts:

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  Used mainly in physics and engineering for calculations involving Newton’s second law in imperial units

  
  
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  Allows consistent use of pound-force and pound-mass without extra conversion factors

  
  
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  Useful in dynamics, ballistics, and engineering mechanics

  
  

The slug bridges the gap between force and mass in the imperial system, making calculations easier when using pound-force units.