What are the two factors that contribute to the gravity of a planet?

mass and size It is for this reason that while Saturn is *far* more massive (95x more) than the earth the gravity you would experience there is only about 1.1x that on Earth (so if you weighed 100 pounds on earth you would weigh 110 pounds on Saturn). Saturn is the least dense of all the planets so you would be far from the center thus experience less gravity. email me at RosemaryRockwood@gmail.com for more questons