Megameter to Earth's Polar Radius
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How to Convert Megameter to Earth's Polar Radius
For example, 1 Megameter (Mm) = 0.1573130355 Earth's Polar Radius (R⊕ (polar)).
Megameter to Earth's Polar Radius — Common Values
| Megameter (Mm) | Earth's Polar Radius (R⊕ (polar)) |
|---|---|
| 0.1 | 0.01573130355 |
| 0.5 | 0.07865651773 |
| 1 | 0.1573130355 |
| 2 | 0.3146260709 |
| 5 | 0.7865651773 |
| 10 | 1.573130355 |
| 25 | 3.932825887 |
| 50 | 7.865651773 |
| 100 | 15.73130355 |
| 500 | 78.65651773 |
| 1000 | 157.3130355 |
About Earth's Polar Radius (R⊕ (polar))
The Earth's polar radius is the distance from Earth's center to either pole, approximately 6,356.752 km.
R⊕(polar) = 6,356,752.3 m. It is about 21.385 km shorter than the equatorial radius.
To convert Earth polar radii to meters: multiply by 6,356,752.3.
Geodetic calculations, gravity modeling, and precise cartography near the poles.
At the poles, you are about 21 km closer to Earth's center than at the equator — you weigh very slightly more!
Approximating Earth as a perfect sphere — the difference between equatorial and polar radii matters for precision applications.
Earth's shape (oblate spheroid) is like a slightly squished ball — wider at the equator, flatter at the poles.
