You probably mean our Earth..
The diameter d of Earth from North Pole to South Pole is 12,713.54 kilometers (7,899.83 miles), but through the equator it is 12,756.32 kilome…ters (7,926.41 miles). This difference, 42.78 kilometers (26.58 miles), is only 1/298 the diameter of Earth..
Thus the Earth is 42.78 kilometers or 25 miles wider than it is tall, giving it a slight bulge at the equator. This is only 0.3 percent, too small to be seen visually..
To calculate the circumference C use the formula:.
C = pi times d ..
pi = 3.141592654... (MORE)