Earth radius
Unit of length
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Earth radius is the distance from the center of Earth to a point on or near its surface. Approximating the figure of Earth by an Earth spheroid, the radius ranges from a maximum of nearly 6,378 km to a minimum of nearly 6,357 km. Wikipedia
Symbol: R🜨
English units: 3,950 to 3,963 mi
Metric system: 6,357 to 6,378 km
SI base unit: 6.3781×106 m
Unit of: distance
Unit system: astronomy, geophysics