What is the difference between mass and weight?

Mass (kg) is the amount of matter and is constant everywhere. Weight is the gravitational force on that mass and changes with location.

How much would I weigh on the Moon?

About 17% of your Earth weight. A 70 kg person would feel like 11.9 kg.

Yes, on Jupiter (2.53 g) or some exoplanets. A 70 kg person would weigh about 177 kg-force on Jupiter.

Find what you would weigh on another planet by scaling your Earth weight by the surface gravity ratio.

Your Weight on Earth

Planet Gravity (g)

Weight on Planet

26.60 kg

Force (N)260.86 N

Weight on Planet vs Your Weight on Earth

Weight is the force of gravity on your mass: W = m × g.

W_planet = W_Earth × (g_planet / g_Earth)

Common gravity ratios: Moon 0.17, Mars 0.38, Jupiter 2.53, Saturn 1.07.

Note: mass stays the same everywhere; weight changes with gravity.

A 70 kg person on Mars (g = 0.38).

Calculate planet surface gravity.

Compute gravity from mass and radius.

Calculate escape velocity.