Convert span (cloth) to Earth's equatorial radius
Please provide values below to convert span (cloth) [span] to Earth's equatorial radius [R_e], or Convert Earth's equatorial radius to span (cloth).
How to Convert Span (Cloth) to Earth's Equatorial Radius
1 span = 3.58411868544059e-08 R_e
Example: convert 15 span to R_e:
15 span = 15 × 3.58411868544059e-08 R_e = 5.37617802816089e-07 R_e
Span (Cloth) to Earth's Equatorial Radius Conversion Table
| span (cloth) | Earth's equatorial radius |
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Span (Cloth)
A span is an obsolete unit of length, typically about 9 inches, based on the distance between the tip of the thumb and the tip of the little finger when the hand is fully extended.
History/Origin
The span has been used as a unit of measurement for thousands of years in many different cultures.
Current Use
The span is no longer a standard unit of measurement.
Earth's Equatorial Radius
The Earth's equatorial radius is the distance from the center of the Earth to the equator, approximately 6,378.1 kilometers.
History/Origin
The size and shape of the Earth have been a subject of study since ancient times. Modern measurements are made using satellite geodesy.
Current Use
The Earth's equatorial radius is a fundamental parameter in geodesy, geophysics, and astronomy. It is used in cartography and for defining the shape of the Earth.