## 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).