Mercury, the smallest planet in our solar system, has the following size characteristics:
- Radius: 2,440 kilometers (1,516 miles)
- Diameter: 4,878 kilometers (3,032 miles)
- Circumference: Approximately 15,329 kilometers (9,525 miles), comparable to the size of the continental United States
- Volume: 60.8 billion cubic kilometers (14.6 billion cubic miles)
- Mass: Approximately 3.3 x 10^23 kilograms, about 0.055 times that of Earth
To put its size in perspective:
- If Earth were the size of a nickel, Mercury would be about as big as a blueberry.
- If Earth were the size of a baseball, Mercury would be about the size of a golf ball.
- Mercury is slightly larger than Earths Moon.