The equatorial circumference of the Earth is 24,901.55 miles. When taking measures travelling across the poles, however, the total drops to 24,859.82 miles.
Because of its form, the Earth’s circumference can vary slightly. The Earth is shaped like an oblate spheroid rather than a perfect sphere. Flying around the Earth passing via its poles is faster than flying around its circumference due to its shape and fluctuations in its circumference. Other planets in the solar system, such as Jupiter, which has an equatorial diameter of 279,118 miles, and the sun, which has an equatorial circumference of 2,720,000 miles, dwarf the Earth.
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