Convert ell to Earth's polar radius
Please provide values below to convert ell [ell] to Earth's polar radius [R_p], or Convert Earth's polar radius to ell.
1 ell = 1.79808799534e-07 R_p. To convert ell to Earth's polar radius, multiply the value by 1.79808799534e-07; to go the other way, divide by it (1 R_p = 5561463.07962 ell). Both units measure length and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 ell = 1.79808799534e-07 R_p
- 1 R_p = 5561463.07962 ell
- 10 ell = 1.79808799534e-06 R_p
- 100 ell = 1.79808799534e-05 R_p
How to Convert Ell to Earth's Polar Radius
1 ell = 1.79808799534316e-07 R_p
Example: convert 15 ell to R_p:
15 ell = 15 × 1.79808799534316e-07 R_p = 2.69713199301473e-06 R_p
Ell to Earth's Polar Radius Conversion Table
| ell | Earth's polar radius |
|---|---|
| 1 ell | 1.79808799534e-07 R_p |
| 2 ell | 3.59617599069e-07 R_p |
| 3 ell | 5.39426398603e-07 R_p |
| 5 ell | 8.99043997672e-07 R_p |
| 10 ell | 1.79808799534e-06 R_p |
| 20 ell | 3.59617599069e-06 R_p |
| 50 ell | 8.99043997672e-06 R_p |
| 100 ell | 1.79808799534e-05 R_p |
| 500 ell | 8.99043997672e-05 R_p |
| 1000 ell | 0.000179808799534 R_p |
Ell
The ell is an obsolete unit of length, originally used for measuring cloth. Its length varied in different countries, but it was generally around 45 inches.
History/Origin
The word "ell" is derived from the Latin "ulna," meaning "forearm," as the unit was originally based on the length of the forearm.
Current Use
The ell is no longer in use.
Earth's Polar Radius
The Earth's polar radius is the distance from the center of the Earth to the North or South Pole, approximately 6,356.8 kilometers.
History/Origin
The fact that the Earth is an oblate spheroid, flattened at the poles, has been known since the 18th century. Modern measurements are made with high precision.
Current Use
The Earth's polar radius is a key parameter in geodesy and is used to define the Earth's shape and gravitational field.
Frequently Asked Questions
What is 1 ell in Earth's polar radius?
1 ell (ell) = 1.79808799534e-07 Earth's polar radius (R_p).
How do you convert ell to Earth's polar radius?
Multiply the ell value by 1.79808799534e-07. For example, 25 ell × 1.79808799534e-07 = 4.49521998836e-06 R_p.
What is 10 ell in Earth's polar radius?
10 ell = 1.79808799534e-06 R_p.
Which unit is larger, the ell or the Earth's polar radius?
The Earth's polar radius is the larger unit: 1 ell equals only 1.79808799534e-07 R_p.