nothing. that's not even possible.
The circumference is the perimeter of a circle. Basically the length of the outside of a circle. Circumference=2*pi*radius
Charon's circumference is approximately 3,903.8 kilometers (2,427 miles). It is the largest moon of Pluto and is considered to be quite large relative to the size of the dwarf planet.
The equation for the circumference of a circle is 2 multiplied by 3.14 (pi) multiplied by the radius. Since the radius is half of the diameter, it can also be calculated by multiplying the diameter by 3.14.
"normal" eggs in the U.S.A. are called grade A large They are greater than 2 ounces or 57 grams and have a circumference of approximately 6 inches. The "normal" egg sold in Australia is the large and is greater than 52 grams with a circumference of 5.5 inches