The newton is the force that accelerates one kilogram at one metre per second squared. Kilogram-force is the weight of a 1 kg mass under standard gravity, exactly 9.80665 N, and pound-force is about 4.448 N. The dyne, from the older CGS system, is 0.00001 N. Engineers meet all of these on load ratings, spring specs and material tests. This converter switches between them so you can, for example, read a 50 kgf rating as 490 N or a 100 lbf pull as 445 N.
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