The king size mattress measures 76 inches wide and is 80 inches long, while the queen comes in at 60 inches by 80 inches. The Western king is longer and wider than the queen mattress, but it is not as wide as the king mattress. In terms of overall size, the California king size is smaller than the king. It has a total of 6,048 square inches, while the king size has 6,080 square inches.
Mars is approximately half the diameter of Earth, and its surface area is only slightly less than the total area of Earth's dry land. Mars is less dense than Earth, having about 15% of Earth's volume and 11% of Earth's mass.
How big is Earth. As youâll know already Earth is the third planet form the Sun (Mercury, Venus, Earth) in our solar system. Itâs what we call a terrestrial planet and is in the inner solar system. If we where to start at the equator and go around, the Earthâs equatorial diameter is 7,926 miles or 12,756 kilometers. (in 1980 a B-52 plane took 47 hours to fly around the planet, it was refueled in flight.