The deprecated unit kilogram-force (kgf) or kilopond (kp) is the force exerted by one kilogram of mass in standard Earthgravity (defined as exactly 9.806 65 m/s²). One kilogram-force is equal to exactly 9.806 65 newtons.
The kilogram-force has never been a part of the International System of Units (SI), which was introduced in 1960. The SI unit of force is the newton.
Grams-force and kilograms force were never well-defined units until the CGPM adopted a standard acceleration of gravity of 980.665 cm/s² for this purpose in 1901, though they had been used in low-precision measurements of force before that time.
The deprecated unit kilogram-force (kgf) or kilopond (kp) is the force exerted by one kilogram of mass in standard Earthgravity (defined as exactly 9.80665 m/s²).
Although, The kilogram-force is defined thus, the measured value of the force exerted on a 1 kg mass varies as a function of position on earth.
which is official for defining the kilopond (a.k.a.
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