It depends the mass of the planet and the distance between its core and the surface. Weight is a force of attraction between two bodies, in which the greater mass wins (attracts more). One of the consequences of the attraction that the Earth exerts on us, for example, is the fact that we are attached to its surface.
The intensity of this force can be calculated and is measured in “kilogram-force” and in “newton” (abbreviations: kgf and N). The calculation considers not only the mass of those involved but also the radius, since the planets are round. In the 17th century, Isaac Newton proposed a mathematical formula for this account: «The weight is proportional to its mass, but inversely proportional to the square of the radius of the celestial body».
GET YOUR FOOT OFF THE GROUND
With less gravity, when astronauts take a step on the moon, they almost float in the air. Heavy clothing helps stabilize movement.
Mercury – 25.9 kgf
Venus – 61.6 kgf
Earth – 70 kgf
Mars – 26.6 kgf
Jupiter – 184.8 kgf
Saturn – 80.5 kgf
Uranus – 81.9 kgf
Neptune – 82.6 kgf
Pluto – 7.7 kgf
* Pluto is no longer considered a planet. But, as the subject still generates controversies, we chose to include it.
1kg on Earth is equivalent on other planets to:
Mercury – 0.37 kg
Venus – 0.88 kg
Mars – 0.38 kg
Jupiter – 2.64 kg
Saturn – 1.15 kg
Uranus – 1.17 kg
Neptune – 1.18 kg
Pluto – 0.11 kg
CONSULTANCY: Kepler de Souza Oliveira Filho, professor of astronomy and astrophysics at the Federal University of Rio Grande do Sul.