Weight is a vector quantity with both magnitude and direction, acting towards the center of the Earth.
The formula for weight is $W = mg$, where $W$ is weight, $m$ is mass, and $g$ is gravitational acceleration (approximately $9.8 \frac{m}{s^2}$ on Earth).
Weight varies depending on the gravitational field strength of a celestial body; an object weighs less on the Moon than on Earth.
The weight of an object can be measured using a spring scale or a digital scale calibrated for gravitational force.
Normal force often counteracts weight in scenarios involving surfaces to prevent objects from accelerating through them.