How It Works

What is the difference between mass and weight?


The mass of an object is the amount of matter it contains; the weight of an object is the measure of the force exerted on that object by gravity.

Weight (newtons) = mass (kilograms) x gravity

For example, your mass on Earth and on the moon will be the same, but your weight will change as the force due to gravity on the Earth is greater that that on the moon.