Convert chain to Earth's polar radius
Please provide values below to convert chain [ch] to Earth's polar radius [R_p], or Convert Earth's polar radius to chain.
1 ch = 3.1646348718e-06 R_p. To convert chain to Earth's polar radius, multiply the value by 3.1646348718e-06; to go the other way, divide by it (1 R_p = 315992.220433 ch). Both units measure length and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 ch = 3.1646348718e-06 R_p
- 1 R_p = 315992.220433 ch
- 10 ch = 3.1646348718e-05 R_p
- 100 ch = 0.00031646348718 R_p
How to Convert Chain to Earth's Polar Radius
1 ch = 3.16463487180396e-06 R_p
Example: convert 15 ch to R_p:
15 ch = 15 × 3.16463487180396e-06 R_p = 4.74695230770593e-05 R_p
Chain to Earth's Polar Radius Conversion Table
| chain | Earth's polar radius |
|---|---|
| 1 ch | 3.1646348718e-06 R_p |
| 2 ch | 6.32926974361e-06 R_p |
| 3 ch | 9.49390461541e-06 R_p |
| 5 ch | 1.5823174359e-05 R_p |
| 10 ch | 3.1646348718e-05 R_p |
| 20 ch | 6.32926974361e-05 R_p |
| 50 ch | 0.00015823174359 R_p |
| 100 ch | 0.00031646348718 R_p |
| 500 ch | 0.0015823174359 R_p |
| 1000 ch | 0.0031646348718 R_p |
Chain
A chain is a unit of length equal to 66 feet, or 22 yards.
History/Origin
The chain was developed by English surveyor Edmund Gunter in the early 17th century. It was designed to be a convenient length for surveying land.
Current Use
The chain is still used in some surveying applications and is the length of a cricket pitch.
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 chain in Earth's polar radius?
1 chain (ch) = 3.1646348718e-06 Earth's polar radius (R_p).
How do you convert chain to Earth's polar radius?
Multiply the chain value by 3.1646348718e-06. For example, 25 ch × 3.1646348718e-06 = 7.91158717951e-05 R_p.
What is 10 chain in Earth's polar radius?
10 ch = 3.1646348718e-05 R_p.
Which unit is larger, the chain or the Earth's polar radius?
The Earth's polar radius is the larger unit: 1 ch equals only 3.1646348718e-06 R_p.