Sep 10, 2025 · Mars is a small planet, larger than only Mercury and slightly more than half the size of Earth. Its equatorial radius measures 3,396 kilometers (2,110 miles), with a mean polar …

Jul 15, 2025 · With a radius of 2,106 miles (3,390 kilometers), Mars is about half the size of Earth. If Earth were the size of a nickel, Mars would be about as big as a raspberry.

Its surface gravity is roughly a third of Earth's or double that of the Moon. It is about half as wide as Earth or twice the Moon, with a diameter of 6,779 km (4,212 mi), and has a surface area …

Aug 2, 2012 · Mars is about half (53 percent) the size of Earth, but because Mars is a desert planet, it has the same amount of dry land as Earth.

Oct 20, 2023 · Size: Mars is about 4,212 miles (6,779 kilometers) in diameter. Distance from the Sun: Mars is the fourth planet from the Sun and orbits roughly 142 million miles (229 million …

Mar 28, 2025 · Mars has a diameter (distance from the middle) of almost 6.791 kilometers, and it is roughly 50% of the Earth’s size. Mars is more likely to be struck by asteroid belt debris and …

Mars Size In terms of equatorial radius, the size of Mars is 3,396.2 km, or nearly half the Earth. The polar radius is 3,376.2 km. The total surface area is 144,798,500 km2.

Mar 27, 2025 · Mars has a diameter of 6,779 kilometers (4,212 miles), making it the second-smallest planet in the solar system after Mercury. The planet’s composition includes a dense …

Dec 21, 2008 · For comparison, Mars has 53% of the diameter of Earth. It has about 38% of the surface area of Earth. That sounds small, but that is equal to the total dry land here on Earth. …

5 days ago · Mars is the fourth planet in the solar system in order of distance from the Sun and the seventh in size and mass. It is a periodically conspicuous reddish object in the night sky.