Earth's Polar Radius to Picometer Converter
Unit Converter
Instant · Precise · Universal
32 units available
6 categories total
How to Convert Earth's Polar Radius to Picometer
To convert Earth polar radii to meters: multiply by 6,356,752.3.
R⊕(polar) = 6,356,752.3 m. It is about 21.385 km shorter than the equatorial radius.
For example, 1 Earth's Polar Radius (R⊕ (polar)) = 6.356752e+18 Picometer (pm).
Earth's Polar Radius to Picometer — Common Values
| Earth's Polar Radius (R⊕ (polar)) | Picometer (pm) |
|---|---|
| 0.1 | 6.356752e+17 |
| 0.5 | 3.178376e+18 |
| 1 | 6.356752e+18 |
| 2 | 1.271350e+19 |
| 5 | 3.178376e+19 |
| 10 | 6.356752e+19 |
| 25 | 1.589188e+20 |
| 50 | 3.178376e+20 |
| 100 | 6.356752e+20 |
| 500 | 3.178376e+21 |
| 1000 | 6.356752e+21 |
About Earth's Polar Radius (R⊕ (polar))
Definition
The Earth's polar radius is the distance from Earth's center to either pole, approximately 6,356.752 km.
Mathematical Relationship
R⊕(polar) = 6,356,752.3 m. It is about 21.385 km shorter than the equatorial radius.
Conversion Formula
To convert Earth polar radii to meters: multiply by 6,356,752.3.
Practical Applications
Geodetic calculations, gravity modeling, and precise cartography near the poles.
Interesting Facts
At the poles, you are about 21 km closer to Earth's center than at the equator — you weigh very slightly more!
Common Mistakes
Approximating Earth as a perfect sphere — the difference between equatorial and polar radii matters for precision applications.
Educational Tips
Earth's shape (oblate spheroid) is like a slightly squished ball — wider at the equator, flatter at the poles.
About Picometer (pm)
Definition
The picometer is a unit of length equal to 10⁻¹² meters, or one trillionth of a meter.
Mathematical Relationship
1 pm = 10⁻¹² m = 0.01 Å = 1,000 fm. One nanometer equals 1,000 picometers.
Conversion Formula
To convert pm to meters: multiply by 10⁻¹². To convert pm to angstroms: divide by 100.
Practical Applications
Expressing covalent bond lengths (e.g., C–C bond ≈ 154 pm), atomic radii, and crystal lattice spacings.
Interesting Facts
The hydrogen atom has a radius of about 53 pm (the Bohr radius), while a carbon-carbon single bond is about 154 pm long.
Common Mistakes
Mixing up picometers and nanometers — remember 1 nm = 1,000 pm. Some sources still use the deprecated angstrom.
Educational Tips
Think of pm as the natural unit for atoms: most atomic radii fall between 30 pm and 300 pm.