Convert Nanometer (nm) to Astronomical Unit (AU) instantly.

Nanometer

Astronomical Unit

About these units

Nanometer (nm)

A nanometer—one billionth of a meter (10⁻⁹ m)—is central to nanoscience, nanotechnology, and molecular biology. Many structures essential to life fall into this scale: DNA's double helix is about 2 nm wide, viruses often measure tens to hundreds of nanometers, and key cell structures like ribosomes are on the order of 20–30 nm. In engineering, nanometers define the dimensions of modern semiconductor technology. Silicon transistors have shrunk to features only a few nanometers wide, approaching the physical limits of electron behavior in solid-state materials. In optics, wavelengths of ultraviolet light can be expressed in nanometers, as can surface roughness, material grain sizes, and thin-film coatings. The nanometer is ubiquitous across modern science because it describes both biological and technological structures at the frontier of research.

Astronomical Unit (AU)

The astronomical unit (AU) is one of the most important distance units in astronomy and planetary science. Defined as exactly 149,597,870,700 meters, it represents the average distance between Earth and the Sun. Early astronomers could estimate the AU only indirectly through geometric and observational methods; modern techniques such as radar ranging and spacecraft telemetry have vastly improved its precision. The AU serves as a natural and intuitive scale for describing distances within the solar system. Planetary orbits, asteroid trajectories, comet paths, and interplanetary mission distances are often expressed in astronomical units because they avoid cumbersome scientific notation. For instance, Jupiter orbits at about 5.2 AU from the Sun, while the asteroid belt lies roughly between 2 and 3.3 AU. Beyond practical measurement, the AU forms part of a conceptual framework for understanding solar system layout. It appears in discussions of habitable zones, solar radiation intensity, and celestial mechanics. The unit's significance extends from education to high-level astrophysics, making it one of astronomy's cornerstone measurements.

More Nanometer converters

Nanometer [nm] ↔ Meter [m]

Nanometer [nm] ↔ Kilometer [km]

Nanometer [nm] ↔ Centimeter [cm]

Nanometer [nm] ↔ Millimeter [mm]

Nanometer [nm] ↔ Mile [mi]

Nanometer [nm] ↔ Foot [ft]

Nanometer [nm] ↔ Inch [in]

Nanometer [nm] ↔ Yard [yd]

Nanometer [nm] ↔ Nautical Mile [nmi]

Nanometer [nm] ↔ Micrometer [µm]

Nanometer [nm] ↔ Attometer [am]

Nanometer [nm] ↔ Femtometer [fm]

Nanometer [nm] ↔ Picometer [pm]

Nanometer [nm] ↔ Decimeter [dm]

Nanometer [nm] ↔ Dekameter [dam]

Nanometer [nm] ↔ Hectometer [hm]

Nanometer [nm] ↔ Megameter [Mm]

Nanometer [nm] ↔ Gigameter [Gm]

Nanometer [nm] ↔ Terameter [Tm]

Nanometer [nm] ↔ Petameter [Pm]

Nanometer [nm] ↔ Exameter [Em]

Nanometer [nm] ↔ Mil [mil]

Nanometer [nm] ↔ Hand [hand]

Nanometer [nm] ↔ Fathom [fath]

Nanometer [nm] ↔ Rod [rd]

Nanometer [nm] ↔ Chain [ch]

Nanometer [nm] ↔ Furlong [fur]

Nanometer [nm] ↔ League [lea]

Nanometer [nm] ↔ Nautical Mile (UK) [NM (UK)]

Nanometer [nm] ↔ Nautical League (Int) [nl (int)]

Nanometer [nm] ↔ Nautical League (UK) [nl (UK)]

Nanometer [nm] ↔ Astronomical Unit [AU]

Nanometer [nm] ↔ Light Year [ly]

Nanometer [nm] ↔ Parsec [pc]

Nanometer [nm] ↔ Kiloparsec [kpc]

Nanometer [nm] ↔ Megaparsec [Mpc]

Nanometer [nm] ↔ Angstrom [Å]

Nanometer [nm] ↔ A.U. of Length [a.u.]

Nanometer [nm] ↔ X-unit [X]

Nanometer [nm] ↔ Planck Length [ℓₚ]

Nanometer [nm] ↔ Electron Radius [re]

Nanometer [nm] ↔ Bohr Radius [a₀]

Nanometer [nm] ↔ Point [pt]

Nanometer [nm] ↔ Pica [pica]

Nanometer [nm] ↔ Twip [twip]

Nanometer [nm] ↔ Aln [aln]

Nanometer [nm] ↔ Famn [famn]

Nanometer [nm] ↔ Caliber [cl]

Nanometer [nm] ↔ Centiinch [cin]

Nanometer [nm] ↔ Ken [ken]

Nanometer [nm] ↔ Russian Archin [archin]

Nanometer [nm] ↔ Roman Actus [actus]

Nanometer [nm] ↔ Vara de Tarea [vara de tarea]

Nanometer [nm] ↔ Vara Conuquera [vara conuquera]

Nanometer [nm] ↔ Vara Castellana [vara castellana]

Nanometer [nm] ↔ Cubit (Greek) [cubit (greek)]

Nanometer [nm] ↔ Long Reed [long reed]

Nanometer [nm] ↔ Reed [reed]

Nanometer [nm] ↔ Long Cubit [long cubit]

Nanometer [nm] ↔ Handbreadth [handbreadth]

Nanometer [nm] ↔ Fingerbreadth [fingerbreadth]

Nanometer [nm] ↔ Ell [ell]

Nanometer [nm] ↔ Cubit (UK) [cubit (uk)]

Nanometer [nm] ↔ Span (Cloth) [span]

Nanometer [nm] ↔ Finger (Cloth) [finger]

Nanometer [nm] ↔ Nail (Cloth) [nail]

Nanometer [nm] ↔ Barleycorn [barleycorn]

Nanometer [nm] ↔ Microinch [µin]

Nanometer [nm] ↔ Arpent [arpent]

Nanometer [nm] ↔ Kiloyard [kyd]

Nanometer [nm] ↔ Foot (US Survey) [ft (US)]

Nanometer [nm] ↔ Inch (US Survey) [in (US)]

Nanometer [nm] ↔ Chain (US Survey) [ch (US)]

Nanometer [nm] ↔ Furlong (US Survey) [fur (US)]

Nanometer [nm] ↔ Rod (US Survey) [rd (US)]

Nanometer [nm] ↔ Fathom (US Survey) [fath (US)]

Nanometer [nm] ↔ Mile (US Survey) [mi (US)]

Nanometer [nm] ↔ League (Statute) [st.league]

Nanometer [nm] ↔ Mile (Roman) [mi (Roman)]

Nanometer [nm] ↔ Earth's Equatorial Radius [R⊕]

Nanometer [nm] ↔ Earth's Polar Radius [R⊕ (p)]

Nanometer [nm] ↔ Earth's Distance from Sun [AU (es)]

Nanometer [nm] ↔ Sun's Radius [R☉]

Convert Nanometer to Astronomical Unit