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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= 5.511811023609E-7 agate [typography] (agate)
1 nm= 1.6841311062384E-9 alens (aln)
1 nm= 10 angstroms (Å)
1 nm= 6.6845871222684E-21 astronomical unit (au)
1 nm= 1000000000 attometers (am)
1 nm= 1.1811023622047E-7 barleycorns (bcorn)
1 nm= 1000 bicrons (μμ)
1 nm= 1.2427423844747E-11 blocks (bl)
1 nm= 18.897268777744 bohr radius (Bohr)
1 nm= 5.3961182483768E-12 cable length uk (cbl[UK])
1 nm= 4.5567220764071E-12 cable length us (cbl[US])
1 nm= 3.9370078740157E-6 calibers (cal)
1 nm= 3.9370078740157E-6 centiinch (cin)
1 nm= 1.0E-7 centimeters (cm)
1 nm= 4.9709695378987E-11 chains (ch)
1 nm= 2.1872265966754E-9 cubits (cbt)
1 nm= 1.0E-10 decameters (dam)
1 nm= 1.0E-8 decimeters (dm)
1 nm= 2.6597709657391E-6 didot points (didot point)
1 nm= 5.249343832021E-8 digits (digit)
1 nm= 2.5E-17 earth circumference (Ec)
1 nm= 2.6014432807322E-18 earth to moon distance (EM d)
1 nm= 8.7489063867017E-10 ells (eel)
1 nm= 2.3710630158366E-7 ems (EM)
1 nm= 1.0E-27 exameters (Em)
1 nm= 5.4680664916885E-10 fathoms (fath)
1 nm= 3.2808398950131E-9 feet (ft)
1 nm= 1000000 femtometers (fm)
1 nm= 1000000 fermi (fermi)
1 nm= 8.7489063867017E-9 finger cloth (finer)
1 nm= 4.4994375703037E-8 fingerbreadth (fb)
1 nm= 3.1836994587711E-9 fods (fod)
1 nm= 1.0936132983377E-11 football field length [US] (fbf[US])
1 nm= 4.9709695378987E-12 furlongs (fur)
1 nm= 1.0E-18 gigameters (Gm)
1 nm= 3.2467532467532E-11 greek plethron (pleth)
1 nm= 5.4054054054054E-12 greek stadion (std)
1 nm= 9.8425196850394E-9 hands (h)
1 nm= 1.0E-11 hectometers (hm)
1 nm= 0.0001 himetrics (hiMetric)
1 nm= 4.1666666666667E-10 horse length (hl)
1 nm= 5.2729160086067E-10 hvats (hvat)
1 nm= 3.9370078740157E-8 inches (in)
1 nm= 1.0E-12 kilometers (km)
1 nm= 3.2404406999352E-29 kiloparsecs (kpc)
1 nm= 3.8610038610039E-23 light days (ld)
1 nm= 9.2678405931418E-22 light hours (lh)
1 nm= 5.5586436909394E-20 light minutes (lmin)
1 nm= 1.2868356710848E-24 light months (lm)
1 nm= 3.3355570380254E-18 light seconds (ls)
1 nm= 1.056970721911E-25 light years (ly)
1 nm= 4.7619047619048E-7 lines (l)
1 nm= 4.9709595959548E-9 links (li)
1 nm= 2.6014432807322E-18 lunar distance (LD)
1 nm= 1.0E-15 megameters (Mm)
1 nm= 1.0E-9 meters (m)
1 nm= 3.3333333333333E-9 metric foot (mf)
1 nm= 0.039370078740157 microinches (μin)
1 nm= 0.001 micrometers (μm)
1 nm= 1000 micromicrons (μμm)
1 nm= 6.2137119223733E-13 miles (mi)
1 nm= 1.0E-6 millimeters (mm)
1 nm= 3.9370078740157E-5 mils (mil)
1 nm= 1.0E-13 myriameters (Mym)
1 nm= 1.7497812773403E-8 nails cloth (nail)
1 nm= 1 nanometers (nm)
1 nm= 1.7998560115191E-13 nautical leagues (Nl)
1 nm= 5.3995680345572E-13 nautical miles (NM)
1 nm= 1.3123359580052E-9 paces (pace)
1 nm= 1.3123359580052E-8 palms (palm)
1 nm= 3.2407792894444E-26 parsecs (pc)
1 nm= 1.9883878151595E-10 perch (perch)
1 nm= 1.0E-24 petameters (Pm)
1 nm= 2.3622047262695E-7 picas (p)
1 nm= 1000 picometers (pm)
1 nm= 3.7795280352161E-6 pixels (PX)
1 nm= 6.25E+25 planck length (pl)
1 nm= 2.8346438836889E-6 points (pt)
1 nm= 1.9883878151595E-10 poles (pole)
1 nm= 2.2497187851519E-8 rack unit (ru)
1 nm= 2.3622050220101E-7 rems (rem)
1 nm= 1.9883878151595E-10 rods (rd)
1 nm= 2.8169014084507E-11 roman actus (actus)
1 nm= 1.6404199475066E-10 ropes (rope)
1 nm= 1.0E-13 scandinavian miles (mil[Scandinavian])
1 nm= 6.6844919786096E-27 siriometer (sir)
1 nm= 4.3744531933508E-9 spans (span)
1 nm= 1.0E-21 terameters (Tm)
1 nm= 3.9370078740157E-5 thou (th)
1 nm= 5.6692556267362E-5 twips (twip)
1 nm= 1.1547344110855E-9 varas [Argentina] (vr[Argentina])
1 nm= 1.1930302979111E-9 varas [California] (vr[California])
1 nm= 1.1574074074074E-9 varas [Latin America] (vr[Latin])
1 nm= 1.1932889429847E-9 varas [Mexico] (vr[Mexico])
1 nm= 1.1963153487259E-9 varas [Spanish] (vr[Spanish])
1 nm= 1.1810977122137E-9 varas [Texas] (vr[Texas])
1 nm= 9.3738282714661E-13 versts (vst)
1 nm= 9980.00007984 x unit (xu)
1 nm= 1.0936132983377E-9 yards (yd)
1 nm= 1.0E+15 yoctometers (ym)
1 nm= 1.0E-33 yottameters (Ym)
1 nm= 1000000000000 zeptometers (zm)
1 nm= 1.0E-30 zettameters (Zm)
1 nm= 3.9370078740157E-8 zolls (zoll)