Convert hectonewton to decinewton

Scales are marked in kilograms, but the kilogram measures mass, and weight is the force gravity exerts on that mass. The kilopond (kp, also written kgf) is the weight of one kilogram under standard gravity, 9.80665 N; it was a legal unit in Germany until 1978 and survives in older manuals. The pound-force (lbf) is the same idea for the pound, 4.448 N, and is still the everyday force unit in US engineering. The newton is the SI unit: a 100 g apple weighs about 1 N.