Defining the World

The Earth

What is the circumference of the Earth?

The circumference of the Earth at the equator is 24,901.55 miles (40,066.59 kilometers). Due to the irregular, ellipsoid shape of the Earth, a line of longitude wrapped around the Earth going through the north and south poles is 24,859.82 miles (40,000 kilometers). Therefore, the Earth is a little bit (about 41 miles [66 kilometers]) wider than it is high. The diameter of the Earth is 7,926.41 miles (12,753.59 kilometers).


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