Convert Megameter (Mm) to Earth's Polar Radius (R⊕ (p)) instantly.

Megameter

Earth's Polar Radius

About these units

Megameter (Mm)

The megameter, measuring one million meters (1,000 kilometers), is useful for describing large geographical or geophysical distances on planetary scales. Earth's radius (approximately 6.37 Mm) and the thickness of atmospheric layers can be expressed effectively in megameters. This unit provides a clean and compact way to represent massive distances without resorting to scientific notation. The megameter also appears in discussions of communication signals, satellite orbits, and especially planetary science. While kilometers are still more common in public-facing contexts, megameters offer a more mathematically elegant representation for large calculations. They provide a middle ground between human-scale geography and astronomical units.

Earth's Polar Radius (R⊕ (p))

The Earth's polar radius is approximately 6,356.8 km, slightly shorter than the equatorial radius due to the Earth's flattening at the poles. This measurement is critical in modeling Earth's shape, gravity field, and rotation. It impacts satellite orbits, geodetic surveys, and global positioning systems (GPS). The difference between the equatorial and polar radii also explains phenomena such as centrifugal force variations, equatorial bulges, and sea level differences across latitudes. Understanding R⊕ (p) is essential for precision navigation, Earth science, and astronomy.

More Megameter converters

Megameter [Mm] ↔ Meter [m]

Megameter [Mm] ↔ Kilometer [km]

Megameter [Mm] ↔ Centimeter [cm]

Megameter [Mm] ↔ Millimeter [mm]

Megameter [Mm] ↔ Mile [mi]

Megameter [Mm] ↔ Foot [ft]

Megameter [Mm] ↔ Inch [in]

Megameter [Mm] ↔ Yard [yd]

Megameter [Mm] ↔ Nautical Mile [nmi]

Megameter [Mm] ↔ Micrometer [µm]

Megameter [Mm] ↔ Attometer [am]

Megameter [Mm] ↔ Femtometer [fm]

Megameter [Mm] ↔ Picometer [pm]

Megameter [Mm] ↔ Nanometer [nm]

Megameter [Mm] ↔ Decimeter [dm]

Megameter [Mm] ↔ Dekameter [dam]

Megameter [Mm] ↔ Hectometer [hm]

Megameter [Mm] ↔ Gigameter [Gm]

Megameter [Mm] ↔ Terameter [Tm]

Megameter [Mm] ↔ Petameter [Pm]

Megameter [Mm] ↔ Exameter [Em]

Megameter [Mm] ↔ Mil [mil]

Megameter [Mm] ↔ Hand [hand]

Megameter [Mm] ↔ Fathom [fath]

Megameter [Mm] ↔ Rod [rd]

Megameter [Mm] ↔ Chain [ch]

Megameter [Mm] ↔ Furlong [fur]

Megameter [Mm] ↔ League [lea]

Megameter [Mm] ↔ Nautical Mile (UK) [NM (UK)]

Megameter [Mm] ↔ Nautical League (Int) [nl (int)]

Megameter [Mm] ↔ Nautical League (UK) [nl (UK)]

Megameter [Mm] ↔ Astronomical Unit [AU]

Megameter [Mm] ↔ Light Year [ly]

Megameter [Mm] ↔ Parsec [pc]

Megameter [Mm] ↔ Kiloparsec [kpc]

Megameter [Mm] ↔ Megaparsec [Mpc]

Megameter [Mm] ↔ Angstrom [Å]

Megameter [Mm] ↔ A.U. of Length [a.u.]

Megameter [Mm] ↔ X-unit [X]

Megameter [Mm] ↔ Planck Length [ℓₚ]

Megameter [Mm] ↔ Electron Radius [re]

Megameter [Mm] ↔ Bohr Radius [a₀]

Megameter [Mm] ↔ Point [pt]

Megameter [Mm] ↔ Pica [pica]

Megameter [Mm] ↔ Twip [twip]

Megameter [Mm] ↔ Aln [aln]

Megameter [Mm] ↔ Famn [famn]

Megameter [Mm] ↔ Caliber [cl]

Megameter [Mm] ↔ Centiinch [cin]

Megameter [Mm] ↔ Ken [ken]

Megameter [Mm] ↔ Russian Archin [archin]

Megameter [Mm] ↔ Roman Actus [actus]

Megameter [Mm] ↔ Vara de Tarea [vara de tarea]

Megameter [Mm] ↔ Vara Conuquera [vara conuquera]

Megameter [Mm] ↔ Vara Castellana [vara castellana]

Megameter [Mm] ↔ Cubit (Greek) [cubit (greek)]

Megameter [Mm] ↔ Long Reed [long reed]

Megameter [Mm] ↔ Reed [reed]

Megameter [Mm] ↔ Long Cubit [long cubit]

Megameter [Mm] ↔ Handbreadth [handbreadth]

Megameter [Mm] ↔ Fingerbreadth [fingerbreadth]

Megameter [Mm] ↔ Ell [ell]

Megameter [Mm] ↔ Cubit (UK) [cubit (uk)]

Megameter [Mm] ↔ Span (Cloth) [span]

Megameter [Mm] ↔ Finger (Cloth) [finger]

Megameter [Mm] ↔ Nail (Cloth) [nail]

Megameter [Mm] ↔ Barleycorn [barleycorn]

Megameter [Mm] ↔ Microinch [µin]

Megameter [Mm] ↔ Arpent [arpent]

Megameter [Mm] ↔ Kiloyard [kyd]

Megameter [Mm] ↔ Foot (US Survey) [ft (US)]

Megameter [Mm] ↔ Inch (US Survey) [in (US)]

Megameter [Mm] ↔ Chain (US Survey) [ch (US)]

Megameter [Mm] ↔ Furlong (US Survey) [fur (US)]

Megameter [Mm] ↔ Rod (US Survey) [rd (US)]

Megameter [Mm] ↔ Fathom (US Survey) [fath (US)]

Megameter [Mm] ↔ Mile (US Survey) [mi (US)]

Megameter [Mm] ↔ League (Statute) [st.league]

Megameter [Mm] ↔ Mile (Roman) [mi (Roman)]

Megameter [Mm] ↔ Earth's Equatorial Radius [R⊕]

Megameter [Mm] ↔ Earth's Polar Radius [R⊕ (p)]

Megameter [Mm] ↔ Earth's Distance from Sun [AU (es)]

Megameter [Mm] ↔ Sun's Radius [R☉]

Convert Megameter to Earth's Polar Radius