Jupiter has a magnetic field that is 20,000 times more powerful than Earth's. Jupiter has 3 rings that are only visible when back-lit by the sun. Jupiter also has striped dark and light belts, formed by east to west winds in its upper atmosphere. It has a giant spinning storm known the Great Red Spot and visible clouds that are composed of ammonia.
To calculate the surface gravity of an object, you must know the mass and radius of that object. The mass multiplied by the radius squared -- multiplied by the gravitational constant -- gives you the surface gravity of a particular object.
Jupiter has a mass of 1.90 times 10 to the 27th power, which is 318 times that of the Earth, and a radius 71,492 kilometers; which is 11.2 times that of the Earth. Using Newton's Law of Universal Gravitation, Jupiter has a surface gravity that is 2.5 times -- or 250 percent -- that of the Earth's.
Your weight is the measure of the gravitational pull between you and the object you are standing on. The larger your mass, the larger the gravitational pull; therefore, you will weigh approximately 2.5 times as much on Jupiter as you do on Earth.