Convert Yard to Earth's Polar Radius
Convert yards to earth's polar radii instantly. 1 yard = 1.43847e-7 earth's polar radius — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Earth's Polar Radius to Yard converter for the reverse conversion.
Units explained
Yard
A yard is an Imperial and US customary unit of length equal to 3 feet or exactly 0.9144 meters. It is used for medium distances, particularly in athletics and fabric/textile measurement.
The yard's origin is contested but traditionally attributed to the length from the tip of King Henry I's nose to the end of his outstretched thumb. It was standardized in English law from the medieval period and definitively fixed at 0.9144 m exactly by the 1959 International Yard and Pound Agreement.
Yards are used in American football (10 yards for a first down), golf course distances, fabric and carpet sales in the US, and short-distance running events. The UK uses yards informally and on road signs for short distances.
Standardized in English law from the Middle Ages; fixed at 0.9144 m exactly by the 1959 International Yard and Pound Agreement.
Earth's Polar Radius
Earth's polar radius is the distance from the planet's center to either pole, approximately 6,356,752 meters under the WGS84 geodetic reference system. The polar radius is about 21 km shorter than the equatorial radius due to Earth's oblate spheroid shape.
Derived from WGS84's flattening parameter (f ≈ 1/298.257); the difference from the equatorial radius is the geometric signature of Earth's rotational oblateness.
Earth's polar radius is used in geodesy, satellite-orbit calculations, and global cartography. Together with the equatorial radius it defines Earth's reference ellipsoid in WGS84.
Derived from the WGS84 reference ellipsoid adopted in 1984; the value is computed from the equatorial radius minus the oblateness.
Yard to Earth's Polar Radius conversion formula
The relationship between yards and earth's polar radii:
To convert yards to earth's polar radii, multiply the value in yards by 1.43847e-7. To reverse, multiply earth's polar radii by 6951828.5214348212.
How to use this converter
Type a value into the calculator. The result in earth's polar radii updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Earth's Polar Radius to Yard converter for the reverse direction.
Step-by-step: convert yards to earth's polar radii
- Write down the value in yards (yd).
- Multiply that value by the factor 1.43847e-7.
- The product is the equivalent value in earth's polar radii (R⊕,p).
- To reverse, multiply the earth's polar radius value by 6951828.5214348212.
Worked examples
Example 1 — Convert 1 yd to R⊕,p:
1 × 1.43847e-7 = 1.43847e-7 R⊕,p
Example 2 — Convert 100 yd to R⊕,p:
100 × 1.43847e-7 = 1.43847e-5 R⊕,p
Real-world example — Fabric purchase length
Two yards of fabric equals a value in earth's polar radii essential for tailors and textile buyers sourcing material from international suppliers that quote in different units.
2 yd × 1.43847e-7 = 2.876941e-7 R⊕,p
Real-world example — Maritime depth conversion
A 10-yard sounding depth converts cleanly into earth's polar radii. Recreational divers and sailors translate between the two units whenever they read legacy charts against modern depth-sounder displays.
10 yd × 1.43847e-7 = 1.43847e-6 R⊕,p
Real-world example — Reference scenario in case of fallback
Conversion between human-scale length units is the everyday workflow of architecture, athletics, and apparel design — three of the most common contexts that span metric and imperial systems.
1 yd × 1.43847e-7 = 1.43847e-7 R⊕,p
Yard to Earth's Polar Radius conversion table
Standard reference values for converting yards to earth's polar radii:
| Yard [yd] | Earth's Polar Radius [R⊕,p] |
|---|---|
| 0.01 | 1.43847e-9 |
| 0.1 | 1.43847e-8 |
| 1 | 1.43847e-7 |
| 2 | 2.876941e-7 |
| 3 | 4.315411e-7 |
| 4 | 5.753882e-7 |
| 5 | 7.192352e-7 |
| 10 | 1.43847e-6 |
| 20 | 2.876941e-6 |
| 30 | 4.315411e-6 |
| 40 | 5.753882e-6 |
| 50 | 7.192352e-6 |
| 100 | 1.43847e-5 |
| 500 | 7.192352e-5 |
| 1000 | 0.000143847 |
Frequently asked questions
How many earth's polar radii is 1 yard?
How do I convert yards to earth's polar radii?
How do I convert earth's polar radii back to yards?
How many earth's polar radii is 100 yards?
Popular length unit conversions
Convert Yard to other length units
Show all Yard conversions
Metric / SI (18 units)
Imperial / US Customary (26 units)
Nautical (1 units)
Astronomical (9 units)
Atomic / Physics (6 units)
Typographic (3 units)
Sources & references
Conversion factor (1 yd = 1.43847e-7 R⊕,p) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.