Here's a breakdown of Earth's and Uranus' diameters, and how they compare:

* Earth's Diameter: Approximately 12,742 kilometers (7,926 miles)

* Uranus' Diameter: Approximately 51,118 kilometers (31,763 miles)

Comparison:

Uranus is roughly four times larger in diameter than Earth.

Fun Fact: While Uranus is much larger, it's also significantly less dense. This means it's actually made up of a lot less material than Earth, even though it's much bigger.