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

Pond [p]


The pond is a historical unit of force, equivalent to the force exerted by gravity on a mass of one gram.



  • It is part of the gram-force system and was widely used before the adoption of the newton in the SI system.



  • Mathematically:



1 pond=1 gram×9.80665 m/s2=0.00980665 newtons1 \text{ pond} = 1 \text{ gram} \times 9.80665 \text{ m/s}^2 = 0.00980665 \text{ newtons}

  • In other words, 1 pond is approximately 0.00981 newtons.



  • The pond is rarely used today, having been replaced by the newton, but it may still appear in older scientific literature or certain niche applications.



  • It is similar in concept to the gram-force (gf).




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.



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



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



  • Mathematically:



1 tonf (UK)=2,240 lbs×9.80665 m/s29,964.02 newtons1 \text{ tonf (UK)} = 2,240 \text{ lbs} \times 9.80665 \text{ m/s}^2 \approx 9,964.02 \text{ newtons}

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



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



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