The planet with the weakest gravitational pull is Mercury. Mercury's gravitational pull is 3.7 meters per second-squared, which is less than half Earth's gravitational pull of 9.81 meters per second-squared. An object that weighs 100 pounds on Earth would weigh 38 pounds on Mercury.
The planet with the strongest gravitational pull is Jupiter. Its pull of 24.79 meters per second-squared is 2.53 times the gravity experienced on Earth. Objects that weigh 100 pounds on Earth would weigh 253 pounds on Jupiter. A planet's distance from the sun is not a factor in its gravitational pull; gravity is actually determined by the planet's mass.