Uranus is larger than Earth. It doesn't have a lot of mass for its size though. So, its surface gravity is a little less than Earth's. A person who weighs 100 pounds (45 kg) on Earth would weigh about 79 pounds (41 kg) on Uranus. Uranus doesn't have a solid surface. The weight is calculated as if you were standing at the top of its clouds. Move the slider below to compare weights. The slider shows weight in pounds.