What determines how much something weighs?

The weight of an object is determined primarily by its mass and the gravitational force acting on it. Mass is the amount of matter in the object, while weight is the force exerted by gravity on that mass. This relationship is expressed by the equation ( W = m \times g ), where ( W ) is weight, ( m ) is mass, and ( g ) is the acceleration due to gravity, which can vary depending on location. Therefore, both the object's mass and the strength of the gravitational field it's in dictate its weight.