force · International legacy/specialist · Modern/historical

kilogram-force

exact

Definition

1 kgf = 9.80665 N

One kilogram-force is exactly 9.80665 newtons.

Kilogram-force comes from gravitational metric practice in which the force associated with a kilogram under standard gravity was used as a unit.

Modern use is context-dependent and varies by region or measurement system.

Source tier — · confidence high

force · International · Modern

SI derived unit of force; 1 N = 1 kg·m·s⁻².

force · Scientific legacy · Modern/historical

1 dyn = 10⁻⁵ N

force · US and international engineering · Modern

1 lbf = 4.4482216152605 N