it is 4 878km
Mercury's core has a diameter of about 3,600 miles (5,800 kilometers), which is roughly 85% of the planet's total diameter. It is composed mostly of iron and nickel, and is thought to be partially molten.
The size of Earth equals to 12,756 kilometers while Mercury's size is 4879 kilometers. Around 2.6 Mercuries would fit into Earth.
The diameter of Mercury is 3,032 miles, or 4,879 kilometers. Mercury is the smallest planet in the Solar System and the closest to the Sun.
Mercury has a diameter of approximately 4,880 kilometers (about 3,032 miles) across its center. It is the smallest planet in our solar system, and its size is roughly 38% that of Earth. Mercury's diameter contributes to its relatively high density, making it one of the densest planets in the solar system.
Mars diameter is 6792 km, while Mercurys diameter is 4879 km, so Mars is bigger. Mercury is the smallest of the eight planets, Mars is the second smallest after Mercury.
Mercury is 4,880 km in diameter, and Uranus is 51,152 km in diameter, so 10.2 mercurys equal the diameter of Uranus.
Mercury is much smaller than Saturn. Mercury has a diameter of about 4,880 kilometers, while Saturn has a diameter of about 116,460 kilometers, making Saturn over 23 times larger than Mercury in size.
120,536 kilometers in diameter.
The diameter of the Moon is 2159 miles or 3474 kilometers.
The diameter of the moon at the equator is 3476.28 kilometers. Measured from pole to pole, the diameter is 3471.94 kilometers.
The diameter of Venus is about 95% of the diameter of the Earth. Venus is 12103.6 kilometers in diameter from any reference. (Its slow spin does not produce a bulge.) Earth has an equatorial diameter of about 12756.2 kilometers and a polar diameter of about 12713.6 kilometers.
Mercury has a diameter of about 4880 kilometers. In comparison, Venus has a diameter of about 12100 kilometers and Earth has a diameter of about 12750 kilometers. Mars has a diameter of only about 6800 kilometers, but all the other planets are much bigger than the Earth.