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How large is Uranus?

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Quick Answer

Uranus has a radius of 15,759.2 miles, which is almost four times that of Earth, and it has a circumference of 99,018.1 miles. It has a volume of about 16.39 cubic miles, which makes it 63 times more voluminous than Earth.

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Full Answer

The surface area of Uranus is 3.12 billion square miles, which is almost 16 times the surface area of Earth. Uranus is the smallest of the four gas giants, which also include Jupiter, Saturn and Neptune. Uranus is significantly larger than Mercury, Venus, Earth and Mars. It is the second least dense planet in the solar system, with a density of 1.270 grams per cubic centimeter, which is just 0.23 times the density of Earth.

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