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In physics, the Planck length, denoted ℓP, is a unit of length, equal to 1.616229(38)×10−35 meters. It is a base unit in the system of Planck units, developed by physicist Max Planck. The Planck length can be defined from three fundamental physical constants: the speed of light in a vacuum, the Planck constant, and the gravitational constant.
Planck LengthConversion table | ||
|---|---|---|
| 1 pl | = 8.8188976377744E-33 agate [typography] (agate) | ⇛ |
| 1 pl | = 2.6946097699814E-35 alens (aln) | ⇛ |
| 1 pl | = 1.6E-25 angstroms (Å) | ⇛ |
| 1 pl | = 1.069533939563E-46 astronomical unit (au) | ⇛ |
| 1 pl | = 1.6E-17 attometers (am) | ⇛ |
| 1 pl | = 1.8897637795276E-33 barleycorns (bcorn) | ⇛ |
| 1 pl | = 1.6E-23 bicrons (μμ) | ⇛ |
| 1 pl | = 1.9883878151595E-37 blocks (bl) | ⇛ |
| 1 pl | = 3.023563004439E-25 bohr radius (Bohr) | ⇛ |
| 1 pl | = 8.633789197403E-38 cable length uk (cbl[UK]) | ⇛ |
| 1 pl | = 7.2907553222514E-38 cable length us (cbl[US]) | ⇛ |
| 1 pl | = 6.2992125984252E-32 calibers (cal) | ⇛ |
| 1 pl | = 6.2992125984252E-32 centiinch (cin) | ⇛ |
| 1 pl | = 1.6E-33 centimeters (cm) | ⇛ |
| 1 pl | = 7.9535512606379E-37 chains (ch) | ⇛ |
| 1 pl | = 3.4995625546807E-35 cubits (cbt) | ⇛ |
| 1 pl | = 1.6E-36 decameters (dam) | ⇛ |
| 1 pl | = 1.6E-34 decimeters (dm) | ⇛ |
| 1 pl | = 4.2556335451825E-32 didot points (didot point) | ⇛ |
| 1 pl | = 8.3989501312336E-34 digits (digit) | ⇛ |
| 1 pl | = 4.0E-43 earth circumference (Ec) | ⇛ |
| 1 pl | = 4.1623092491714E-44 earth to moon distance (EM d) | ⇛ |
| 1 pl | = 1.3998250218723E-35 ells (eel) | ⇛ |
| 1 pl | = 3.7937008253386E-33 ems (EM) | ⇛ |
| 1 pl | = 1.6E-53 exameters (Em) | ⇛ |
| 1 pl | = 8.7489063867017E-36 fathoms (fath) | ⇛ |
| 1 pl | = 5.249343832021E-35 feet (ft) | ⇛ |
| 1 pl | = 1.6E-20 femtometers (fm) | ⇛ |
| 1 pl | = 1.6E-20 fermi (fermi) | ⇛ |
| 1 pl | = 1.3998250218723E-34 finger cloth (finer) | ⇛ |
| 1 pl | = 7.1991001124859E-34 fingerbreadth (fb) | ⇛ |
| 1 pl | = 5.0939191340337E-35 fods (fod) | ⇛ |
| 1 pl | = 1.7497812773403E-37 football field length [US] (fbf[US]) | ⇛ |
| 1 pl | = 7.9535512606379E-38 furlongs (fur) | ⇛ |
| 1 pl | = 1.6E-44 gigameters (Gm) | ⇛ |
| 1 pl | = 5.1948051948052E-37 greek plethron (pleth) | ⇛ |
| 1 pl | = 8.6486486486486E-38 greek stadion (std) | ⇛ |
| 1 pl | = 1.5748031496063E-34 hands (h) | ⇛ |
| 1 pl | = 1.6E-37 hectometers (hm) | ⇛ |
| 1 pl | = 1.6E-30 himetrics (hiMetric) | ⇛ |
| 1 pl | = 6.6666666666667E-36 horse length (hl) | ⇛ |
| 1 pl | = 8.4366656137708E-36 hvats (hvat) | ⇛ |
| 1 pl | = 6.2992125984252E-34 inches (in) | ⇛ |
| 1 pl | = 1.6E-38 kilometers (km) | ⇛ |
| 1 pl | = 5.1847051198963E-55 kiloparsecs (kpc) | ⇛ |
| 1 pl | = 6.1776061776062E-49 light days (ld) | ⇛ |
| 1 pl | = 1.4828544949027E-47 light hours (lh) | ⇛ |
| 1 pl | = 8.8938299055031E-46 light minutes (lmin) | ⇛ |
| 1 pl | = 2.0589370737357E-50 light months (lm) | ⇛ |
| 1 pl | = 5.3368912608406E-44 light seconds (ls) | ⇛ |
| 1 pl | = 1.6911531550576E-51 light years (ly) | ⇛ |
| 1 pl | = 7.6190476190476E-33 lines (l) | ⇛ |
| 1 pl | = 7.9535353535276E-35 links (li) | ⇛ |
| 1 pl | = 4.1623092491714E-44 lunar distance (LD) | ⇛ |
| 1 pl | = 1.6E-41 megameters (Mm) | ⇛ |
| 1 pl | = 1.6E-35 meters (m) | ⇛ |
| 1 pl | = 5.3333333333333E-35 metric foot (mf) | ⇛ |
| 1 pl | = 6.2992125984252E-28 microinches (μin) | ⇛ |
| 1 pl | = 1.6E-29 micrometers (μm) | ⇛ |
| 1 pl | = 1.6E-23 micromicrons (μμm) | ⇛ |
| 1 pl | = 9.9419390757973E-39 miles (mi) | ⇛ |
| 1 pl | = 1.6E-32 millimeters (mm) | ⇛ |
| 1 pl | = 6.2992125984252E-31 mils (mil) | ⇛ |
| 1 pl | = 1.6E-39 myriameters (Mym) | ⇛ |
| 1 pl | = 2.7996500437445E-34 nails cloth (nail) | ⇛ |
| 1 pl | = 1.6E-26 nanometers (nm) | ⇛ |
| 1 pl | = 2.8797696184305E-39 nautical leagues (Nl) | ⇛ |
| 1 pl | = 8.6393088552916E-39 nautical miles (NM) | ⇛ |
| 1 pl | = 2.0997375328084E-35 paces (pace) | ⇛ |
| 1 pl | = 2.0997375328084E-34 palms (palm) | ⇛ |
| 1 pl | = 5.185246863111E-52 parsecs (pc) | ⇛ |
| 1 pl | = 3.1814205042551E-36 perch (perch) | ⇛ |
| 1 pl | = 1.6E-50 petameters (Pm) | ⇛ |
| 1 pl | = 3.7795275620311E-33 picas (p) | ⇛ |
| 1 pl | = 1.6E-23 picometers (pm) | ⇛ |
| 1 pl | = 6.0472448563458E-32 pixels (PX) | ⇛ |
| 1 pl | = 1 planck length (pl) | ⇛ |
| 1 pl | = 4.5354302139022E-32 points (pt) | ⇛ |
| 1 pl | = 3.1814205042551E-36 poles (pole) | ⇛ |
| 1 pl | = 3.599550056243E-34 rack unit (ru) | ⇛ |
| 1 pl | = 3.7795280352161E-33 rems (rem) | ⇛ |
| 1 pl | = 3.1814205042551E-36 rods (rd) | ⇛ |
| 1 pl | = 4.5070422535211E-37 roman actus (actus) | ⇛ |
| 1 pl | = 2.6246719160105E-36 ropes (rope) | ⇛ |
| 1 pl | = 1.6E-39 scandinavian miles (mil[Scandinavian]) | ⇛ |
| 1 pl | = 1.0695187165775E-52 siriometer (sir) | ⇛ |
| 1 pl | = 6.9991251093613E-35 spans (span) | ⇛ |
| 1 pl | = 1.6E-47 terameters (Tm) | ⇛ |
| 1 pl | = 6.2992125984252E-31 thou (th) | ⇛ |
| 1 pl | = 9.0708090027779E-31 twips (twip) | ⇛ |
| 1 pl | = 1.8475750577367E-35 varas [Argentina] (vr[Argentina]) | ⇛ |
| 1 pl | = 1.9088484766578E-35 varas [California] (vr[California]) | ⇛ |
| 1 pl | = 1.8518518518519E-35 varas [Latin America] (vr[Latin]) | ⇛ |
| 1 pl | = 1.9092623087754E-35 varas [Mexico] (vr[Mexico]) | ⇛ |
| 1 pl | = 1.9141045579615E-35 varas [Spanish] (vr[Spanish]) | ⇛ |
| 1 pl | = 1.889756339542E-35 varas [Texas] (vr[Texas]) | ⇛ |
| 1 pl | = 1.4998125234346E-38 versts (vst) | ⇛ |
| 1 pl | = 1.5968000127744E-22 x unit (xu) | ⇛ |
| 1 pl | = 1.7497812773403E-35 yards (yd) | ⇛ |
| 1 pl | = 1.6E-11 yoctometers (ym) | ⇛ |
| 1 pl | = 1.6E-59 yottameters (Ym) | ⇛ |
| 1 pl | = 1.6E-14 zeptometers (zm) | ⇛ |
| 1 pl | = 1.6E-56 zettameters (Zm) | ⇛ |
| 1 pl | = 6.2992125984252E-34 zolls (zoll) | ⇛ |