Kilogram-force

Kilogram-force is a unit of force used mainly in engineering, representing the force exerted by Earth's gravity on a mass of one kilogram. It equals approximately 9.80665 newtons, the standard scientific unit of force. Essentially, if you held a one-kilogram object at Earth's surface, the force due to gravity acting on it is one kilogram-force. While the newton is the official SI unit for force, kilogram-force is still used historically or in certain contexts, like machinery specifications. It provides an intuitive way to relate weight to mass, though it’s less common in precise scientific calculations today.