Convert poundal [pdl] to kilopond [kp] Online | Free force Converter

Poundal [pdl]


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



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



  • Mathematically:



1 pdl=1 lb×1 ft/s2=0.138255 newtons1 \text{ pdl} = 1 \text{ lb} \times 1 \text{ ft/s}^2 = 0.138255 \text{ newtons}

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



1 lbf=32.174 pdl1 \text{ lbf} = 32.174 \text{ pdl}

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


Kilopond [kp]


The kilopond (also called kilogram-force, kgf) is a unit of force based on the metric system.



  • It represents the force exerted by gravity on a mass of one kilogram under standard Earth gravity.



  • Mathematically:



1 kp=1 kg×9.80665 m/s2=9.80665 newtons1 \text{ kp} = 1 \text{ kg} \times 9.80665 \text{ m/s}^2 = 9.80665 \text{ newtons}

  • It is commonly used in engineering and industries, especially before the widespread adoption of the newton (SI unit).



  • The kilopond is equivalent to the kilogram-force (kgf) and is often used interchangeably.



  • Despite being non-SI, it remains popular in some regions for practical measurements of force.





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