
Assuming this is a legitimate question and not a scatological joke, the size of Uranus has been measured by a direct 'probe' using the high technology services of NASA in a fly-by mission called Voyager. Its radius is 24,500 kilometers. Jupiter's is bigger. This makes it about 3 times the diameter of the Earth, and 1/3 the diameter of Jupiter.
Copyright 1997 Dr. Sten Odenwald
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