Earth Polar Radius
The Earth's polar radius is the distance from the center of the Earth to the North or South Pole. It measures the Earth’s radius along its rotational axis.
Its value is approximately 6,356.8 kilometers (about 3,949.9 miles).
The Earth is an oblate spheroid, so the polar radius is slightly shorter than the equatorial radius due to the planet's flattening at the poles.
This measurement is crucial for geodesy, understanding Earth’s shape, and satellite navigation.
Key facts:
Polar radius ≈ 6,356.8 km
Smaller than equatorial radius by about 21.3 km
Important for precise Earth modeling and mapping
The difference between the polar and equatorial radius reflects the Earth’s rotation and its effect on the planet’s shape.
Yard
A yard is a unit of length used mainly in the United States, the United Kingdom, and some other countries. One yard equals 3 feet or 36 inches, which is about 0.91 meters. Yards are often used to measure things like fabric, sports fields, or short distances. For example, an American football field is 100 yards long. The abbreviation for yard is "yd". While the metric system is widely used worldwide, yards are still common in everyday life and certain industries in countries that use the imperial system.
No conversions available for length.