Q:

# How many miles is the Earth's diameter?

A:

The diameter of the Earth is 7,926 miles at the equator; however, if the diameter of the Earth is measured through the North and South Poles, the diameter is only 7,901 miles. This length is slightly shorter than the width.

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Although the Earth has a sphere-like shape, the rotation of the Earth has caused the planet to flatten out slightly. For that reason, the Earth has a larger diameter at the equator. The diameter of the Earth varies as a result of a tiny bulge located at the equator. This bulge is called an ellipsoid or, more accurately, a geoid.

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## Related Questions

• A:

A person weighing 100 pounds on Earth would weigh 107 pounds near the poles of Saturn and 91 pounds near Saturn's equator. This difference is due to centrifugal force offsetting some of the pull of gravity along the equator as the planet spins on its axis.

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• A:

The diameters of the planets are as follows: Mercury is 3,032 miles; Venus is 7,521 miles; Earth is 7,926 miles; Mars is 4,222 miles; Jupiter is 88,846 miles; Saturn is 74,898 miles; Uranus is 31,763 miles; Neptune is 30,778 miles. As a result, the largest planet by diameter is Jupiter and the smallest is Mercury.

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• A:

Jupiter is slightly over 1,321 times more voluminous than the Earth, and its equator is roughly 11 times bigger than the Earth's equator. Measured by mass, Jupiter is the largest planet in the solar system.