Convert kilometer to Earth's equatorial radius
Please provide values below to convert kilometer [km] to Earth's equatorial radius [R_e], or Convert Earth's equatorial radius to kilometer.
1 km = 0.000156785594289 R_e. To convert kilometer to Earth's equatorial radius, multiply the value by 0.000156785594289; to go the other way, divide by it (1 R_e = 6378.137 km). Both units measure length and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 km = 0.000156785594289 R_e
- 1 R_e = 6378.137 km
- 10 km = 0.00156785594289 R_e
- 100 km = 0.0156785594289 R_e
How to Convert Kilometer to Earth's Equatorial Radius
1 km = 0.00015678559428874 R_e
Example: convert 15 km to R_e:
15 km = 15 × 0.00015678559428874 R_e = 0.0023517839143311 R_e
Kilometer to Earth's Equatorial Radius Conversion Table
| kilometer | Earth's equatorial radius |
|---|---|
| 1 km | 0.000156785594289 R_e |
| 2 km | 0.000313571188577 R_e |
| 3 km | 0.000470356782866 R_e |
| 5 km | 0.000783927971444 R_e |
| 10 km | 0.00156785594289 R_e |
| 20 km | 0.00313571188577 R_e |
| 50 km | 0.00783927971444 R_e |
| 100 km | 0.0156785594289 R_e |
| 500 km | 0.0783927971444 R_e |
| 1000 km | 0.156785594289 R_e |
Kilometer
A kilometer is a unit of length in the metric system, equal to one thousand meters.
History/Origin
The term "kilometer" is derived from the Greek words "khilioi" (thousand) and "metron" (measure). The kilometer was first defined as part of the metric system in France in 1795.
Current Use
The kilometer is the most widely used unit of distance for road signs and travel distances in the world, with the notable exceptions of the United States and the United Kingdom.
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.
Frequently Asked Questions
What is 1 kilometer in Earth's equatorial radius?
1 kilometer (km) = 0.000156785594289 Earth's equatorial radius (R_e).
How do you convert kilometer to Earth's equatorial radius?
Multiply the kilometer value by 0.000156785594289. For example, 25 km × 0.000156785594289 = 0.00391963985722 R_e.
What is 10 kilometer in Earth's equatorial radius?
10 km = 0.00156785594289 R_e.
Which unit is larger, the kilometer or the Earth's equatorial radius?
The Earth's equatorial radius is the larger unit: 1 km equals only 0.000156785594289 R_e.