30,800 miles
Neptune's diameter is 30,599 miles (49,244 km)
Neptune has a diameter of 30,685 miles.
The diameter of the planet Uranus is 51,118 kilometers.The diameter of the planet Neptune is 49,528 kilometers.So then it would be:1,590 c:
Neptune
Neptune's diameter at the equator is 30,775 miles (49,528 kilometers).
Mercury's diameter is approximately 3000 miles. Neptune has a diameter of 30,200 miles, and Uranus has a diameter of 32,600 miles.
Planet Neptune has a surface area of 2.941 billion sq miles (7.618 billion km²).
Neptune's diameter is about 30775.2724 miles.
Find what it is in miles and multiply by 5280.
The diameter of Neptune is 30,599 miles. This can also be written as 49,244 kilometers. Neptune is one of the gas giants.
The planet Neptune has a deep, dense atmosphere of gases and liquids, so there is no definitive surface to measure. So the closest approximation of its "diameter" is accurate to about 30 kilometers, and is 49,528 km (30,775 miles), which is almost 4 times as wide as Earth.
Neptune is spinning, and that makes the equator bulge a little bit, so the diameter at the equator is larger than its diameter at the poles. The diameter at Neptune's equator is 49,528 ± 30 km (30,775 miles) and the diameter atNeptune's poles is 48,642 ± 60 km (30,250 miles). Neptune is about 3.8 times the diameter of Earth.Planet Diameter in kilometersMercury------------ 4,880Venus -------------12,104Earth --------------12,756Mars ----------------6,794Jupiter -----------142,984Saturn -----------120,536Uranus ------------51,118Neptune -----------49,532(Dwarf Planet Pluto --2,274) The diameter of Neptune at its equator is 30,599 miles, or 49,244 kilometers. Neptune is one of the gas giants in the Solar System. The diameter of Neptune is 49,532AnswerNeptune's diameter is approximately 49,530 kilometers (30,789 miles). Here are all diameters of the planets. Pluto is no planet anymore. Mercury 4,880 km Venus 12,104 kmEarth 12,756 kmMars 6,794 kmJupiter 142,984 kmSaturn 120,536 kmUranus 51,118 kmNeptune 49,532 km Look for yourself. The diameter of Neptune is 30,599 miles. This is 49,244 kilometers. Neptune is a blue gas giant and the eighth planet from the Sun.