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The nanometer (symbol: nm) or nanometre (British spelling) is a unit of length in the metric system, equal to one billionth of a meter (0.000000001 m). The name combines the SI prefix nano- (from the Ancient Greek nanos, "dwarf") with the parent unit name meter (from Greek metrοn, "unit of measurement"). It can be written in scientific notation as 1×10−9 m, in engineering notation as 1 E−9 m, and is simply 1/1000000000 meters. One nanometer equals ten angstroms. Every second your nail grows 1 nanometer.

The nanometer was formerly known as the millimicrometer – or, more commonly, the millimicron for short – since it is 1/1000 of a micron (micrometer), and was often denoted by the symbol mµ or (more rarely and confusingly, since it logically should refer to a millionth of a micron) as µµ.

Symbol/abbreviation: nm
Unit of: LENGTH
LENGTH's base unit: meters (SI Unit)
In relation to the base unit (meters), 1 Nanometers = 1.0E-9 meters.
[Conversion table] 1 Nanometers (nm) to all length units
1 nm= 5.51181102361E-7 agate [typography] (agate)
1 nm= 1.68413110624E-9 alens (aln)
1 nm= 10 angstroms (Å)
1 nm= 6.68458712227E-21 astronomical unit (au)
1 nm= 1000000000 attometers (am)
1 nm= 8.46668360003E-12 barleycorns (bcorn)
1 nm= 1000 bicrons (μμ)
1 nm= 18.8972687777 bohr radius (Bohr)
1 nm= 5.39611824838E-12 cable length uk (cbl[UK])
1 nm= 4.55672207641E-12 cable length us (cbl[US])
1 nm= 3.93700787402E-6 calibers (cal)
1 nm= 3.93700787402E-6 centiinch (cin)
1 nm= 1.0E-7 centimeters (cm)
1 nm= 4.9709695379E-11 chains (ch)
1 nm= 2.18722659668E-9 cubits (cbt)
1 nm= 1.0E-10 decameters (dam)
1 nm= 1.0E-8 decimeters (dm)
1 nm= 2.65977096574E-6 didot points (didot point)
1 nm= 5.24934383202E-8 digits (digit)
1 nm= 8.7489063867E-10 ells (eel)
1 nm= 2.37106301584E-7 ems (EM)
1 nm= 1.0E-27 exameters (Em)
1 nm= 5.46806649169E-10 fathoms (fath)
1 nm= 3.28083989501E-9 feet (ft)
1 nm= 1000000 femtometers (fm)
1 nm= 1000000 fermi (fermi)
1 nm= 8.7489063867E-9 finger cloth (finer)
1 nm= 4.4994375703E-8 fingerbreadth (fb)
1 nm= 3.18369945877E-9 fods (fod)
1 nm= 4.9709695379E-12 furlongs (fur)
1 nm= 1.0E-18 gigameters (Gm)
1 nm= 3.24675324675E-11 greek plethron (pleth)
1 nm= 5.40540540541E-12 greek stadion (std)
1 nm= 9.84251968504E-9 hands (h)
1 nm= 1.0E-11 hectometers (hm)
1 nm= 0.0001 himetrics (hiMetric)
1 nm= 5.27291600861E-10 hvats (hvat)
1 nm= 3.93700787402E-8 inches (in)
1 nm= 1.0E-12 kilometers (km)
1 nm= 3.24044069994E-29 kiloparsecs (kpc)
1 nm= 3.861003861E-23 light days (ld)
1 nm= 9.26784059314E-22 light hours (lh)
1 nm= 5.55864369094E-20 light minutes (lmin)
1 nm= 1.28683567108E-24 light months (lm)
1 nm= 3.33555703803E-18 light seconds (ls)
1 nm= 1.05697072191E-25 light years (ly)
1 nm= 4.7619047619E-7 lines (l)
1 nm= 4.97095959595E-9 links (li)
1 nm= 1.0E-15 megameters (Mm)
1 nm= 1.0E-9 meters (m)
1 nm= 0.0393700787402 microinches (μin)
1 nm= 0.001 micrometers (μm)
1 nm= 1000 micromicrons (μμm)
1 nm= 6.21371192237E-13 miles (mi)
1 nm= 1.0E-6 millimeters (mm)
1 nm= 3.93700787402E-5 mils (mil)
1 nm= 1.0E-13 myriameters (Mym)
1 nm= 1.74978127734E-8 nails cloth (nail)
1 nm= 1 nanometers (nm)
1 nm= 1.79985601152E-13 nautical leagues (Nl)
1 nm= 5.39956803456E-13 nautical miles (NM)
1 nm= 1.31233595801E-9 paces (pace)
1 nm= 1.31233595801E-8 palms (palm)
1 nm= 3.24077928944E-26 parsecs (pc)
1 nm= 1.98838781516E-10 perch (perch)
1 nm= 1.0E-24 petameters (Pm)
1 nm= 2.36220472627E-7 picas (p)
1 nm= 1000 picometers (pm)
1 nm= 3.77952803522E-6 pixels (PX)
1 nm= 6.25E+25 planck length (pl)
1 nm= 2.83464388369E-6 points (pt)
1 nm= 1.98838781516E-10 poles (pole)
1 nm= 2.24971878515E-8 rack unit (ru)
1 nm= 2.36220502201E-7 rems (rem)
1 nm= 1.98838781516E-10 rods (rd)
1 nm= 2.81690140845E-11 roman actus (actus)
1 nm= 1.64041994751E-10 ropes (rope)
1 nm= 1.0E-13 scandinavian miles (mil[Scandinavian])
1 nm= 4.37445319335E-9 spans (span)
1 nm= 1.0E-21 terameters (Tm)
1 nm= 3.93700787402E-5 thou (th)
1 nm= 5.66925562674E-5 twips (twip)
1 nm= 1.15473441109E-9 varas [Argentina] (vr[Argentina])
1 nm= 1.19303029791E-9 varas [California] (vr[California])
1 nm= 1.15740740741E-9 varas [Latin America] (vr[Latin])
1 nm= 1.19328894298E-9 varas [Mexico] (vr[Mexico])
1 nm= 1.19631534873E-9 varas [Spanish] (vr[Spanish])
1 nm= 1.18109771221E-9 varas [Texas] (vr[Texas])
1 nm= 9.37382827147E-13 versts (vst)
1 nm= 9980.00007984 x unit (xu)
1 nm= 1.09361329834E-9 yards (yd)
1 nm= 1.0E+15 yoctometers (ym)
1 nm= 1.0E-33 yottameters (Ym)
1 nm= 1.0E+12 zeptometers (zm)
1 nm= 1.0E-30 zettameters (Zm)
1 nm= 3.93700787402E-8 zolls (zoll)
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