Convert ton-force (long) [tonf (UK)] to poundal [pdl] Online | Free force Converter

Ton-Force (Long) [tonf (UK)]

The long ton-force (also called the UK ton-force) is a unit of force based on the long ton, traditionally used in the United Kingdom.

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  A long ton equals 2,240 pounds (lbs).

  
  
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  The long ton-force is the force exerted by a long ton mass under standard gravity.

  
  
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  Mathematically:

  
  

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  It is used in engineering and industries where the long ton is the standard measure of mass.

  
  
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  This unit is larger than the short ton-force and differs from the metric ton-force.

Poundal [pdl]

The poundal is a unit of force in the foot-pound-second (FPS) system, mainly used in the United States.

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  It is defined as the force required to accelerate a one-pound mass by one foot per second squared.

  
  
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  Mathematically:

  
  

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  The poundal is smaller than the pound-force since Earth's gravity accelerates a pound mass at approximately 32.174 ft/s², making:

  
  

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  It is mostly of historical interest and rarely used in modern engineering but can appear in classical mechanics problems using the FPS system.