Convert Light-Year to Astronomical Unit Online

About Light-Year to Astronomical Unit Conversion

This converter converts Light-Year (ly) to Astronomical Unit (AU). One Light-Year (ly) equals 63241.07708426628 Astronomical Unit (AU).

Formula:

1 Light-Year (ly) = 63241.07708426628 Astronomical Unit (AU)

Example:

1 ly = 63241.07708426628 AU
2 ly = 126482.15416853256 AU

Light-Year (ly) to Astronomical Unit (AU) Conversion

A clear guide to converting Light-Year into Astronomical. Includes numeric examples, formulas, and a breakdown of where this conversion appears in science, engineering, and daily applications.

Conversion Formula

Astronomical = Light-Year × 63241.077084

To convert Light-Year (ly) to Astronomical Unit (AU), multiply the value by 63241.077084. This factor is obtained by comparing their exact meter definitions.

Worked Example

Convert 1 ly to AU.

  • Step 1: Write the formula: AU = ly × 63241.077084
  • Step 2: Substitute: 1 × 63241.077084
  • Step 3: Result: 63241.077084 AU
So, 1 ly = 63241.077084 AU.

About the Units

Light-Year (ly)

One Light-Year (ly) equals 63241.077084 Astronomical Unit (AU)

Used for extremely large distances such as astronomical or planetary scales.

Astronomical Unit (AU)

One Astronomical Unit (AU) equals 1.581251e-5 Light-Year (ly)

Used for extremely large distances such as astronomical or planetary scales.

Where This Conversion Is Used

  • Converting values from Light-Year to Astronomical for engineering or scientific workflows.
  • Used when normalizing mixed-unit datasets requiring consistent Astronomical representation.
  • Applied when comparing different measurement systems across tools and documents.
  • Essential in astronomy, orbital mechanics, and large-scale simulations.

Frequently Asked Questions

How many Astronomical Unit (AU) are in 1 Light-Year (ly)?

1 ly = 63241.077084 AU.

What is the formula for converting Light-Year (ly) to Astronomical Unit (AU)?

Multiply the ly value by 63241.077084.

Can I reverse the conversion?

Yes. 1 AU = 1.581251e-5 ly.

Conclusion

By applying the conversion factor shown above, you can reliably convert Light-Year (ly) to Astronomical Unit (AU) for use in scientific analysis, engineering calculations, academic work, or daily measurements.

Quick Links for Unit Converters

Convert Light-Year to Other Units

Light-Year to Inch

1 ly = 372469703644913400 in

1 Light-Year (ly) = 372469703644913400 Inches (in)

1 Light-Year equals 372469703644913400 inches.

Light-Year to Foot

1 ly = 31039141970409450 ft

1 Light-Year (ly) = 31039141970409450 Feet (ft)

1 Light-Year equals 31039141970409450 feet.

Light-Year to Feet

1 ly = 31039141970409450 ft

1 Light-Year (ly) = 31039141970409450 Feets (ft)

1 Light-Year equals 31039141970409450 feets.

Light-Year to Centimeter

1 ly = 946073047258080000 cm

1 Light-Year (ly) = 946073047258080000 Centimeters (cm)

1 Light-Year equals 946073047258080000 centimeters.

Light-Year to Meter

1 ly = 9460730472580800 m

1 Light-Year (ly) = 9460730472580800 Meters (m)

1 Light-Year equals 9460730472580800 meters.

Light-Year to Kilometer

1 ly = 9460730472580.8 km

1 Light-Year (ly) = 9460730472580.8 Kilometers (km)

1 Light-Year equals 9460730472580.8 kilometers.

Light-Year to Millimeter

1 ly = 9460730472580800000 mm

1 Light-Year (ly) = 9460730472580800000 Millimeters (mm)

1 Light-Year equals 9460730472580800000 millimeters.

Light-Year to Yard

1 ly = 10346380656803150 yd

1 Light-Year (ly) = 10346380656803150 Yards (yd)

1 Light-Year equals 10346380656803150 yards.

Light-Year to Yoctometer

1 ly = 9.460730472580801e+39 ym

1 Light-Year (ly) = 9.460730472580801e+39 Yoctometers (ym)

1 Light-Year equals 9.460730472580801e+39 yoctometers.

Light-Year to Zeptometer

1 ly = 9.4607304725808e+36 zm

1 Light-Year (ly) = 9.4607304725808e+36 Zeptometers (zm)

1 Light-Year equals 9.4607304725808e+36 zeptometers.

Light-Year to Attometer

1 ly = 9.4607304725808e+33 am

1 Light-Year (ly) = 9.4607304725808e+33 Attometers (am)

1 Light-Year equals 9.4607304725808e+33 attometers.

Light-Year to Femtometer

1 ly = 9.460730472580799e+30 fm

1 Light-Year (ly) = 9.460730472580799e+30 Femtometers (fm)

1 Light-Year equals 9.460730472580799e+30 femtometers.

Light-Year to Picometer

1 ly = 9.4607304725808e+27 pm

1 Light-Year (ly) = 9.4607304725808e+27 Picometers (pm)

1 Light-Year equals 9.4607304725808e+27 picometers.

Light-Year to Nanometer

1 ly = 9.4607304725808e+24 nm

1 Light-Year (ly) = 9.4607304725808e+24 Nanometers (nm)

1 Light-Year equals 9.4607304725808e+24 nanometers.

Light-Year to Micrometer

1 ly = 9.460730472580801e+21 µm

1 Light-Year (ly) = 9.460730472580801e+21 Micrometers (µm)

1 Light-Year equals 9.460730472580801e+21 micrometers.

Light-Year to Decimeter

1 ly = 94607304725808000 dm

1 Light-Year (ly) = 94607304725808000 Decimeters (dm)

1 Light-Year equals 94607304725808000 decimeters.

Light-Year to Decameter

1 ly = 946073047258080 dam

1 Light-Year (ly) = 946073047258080 Decameters (dam)

1 Light-Year equals 946073047258080 decameters.

Light-Year to Hectometer

1 ly = 94607304725808 hm

1 Light-Year (ly) = 94607304725808 Hectometers (hm)

1 Light-Year equals 94607304725808 hectometers.

Light-Year to Megameter

1 ly = 9460730472.5808 Mm

1 Light-Year (ly) = 9460730472.5808 Megameters (Mm)

1 Light-Year equals 9460730472.5808 megameters.

Light-Year to Gigameter

1 ly = 9460730.4725808 Gm

1 Light-Year (ly) = 9460730.4725808 Gigameters (Gm)

1 Light-Year equals 9460730.4725808 gigameters.

Light-Year to Terameter

1 ly = 9460.7304725808 Tm

1 Light-Year (ly) = 9460.7304725808 Terameters (Tm)

1 Light-Year equals 9460.7304725808 terameters.

Light-Year to Petameter

1 ly = 9.4607304725808 Pm

1 Light-Year (ly) = 9.4607304725808 Petameters (Pm)

1 Light-Year equals 9.4607304725808 petameters.

Light-Year to Exameter

1 ly = 0.0094607304725808 Em

1 Light-Year (ly) = 0.0094607304725808 Exameter (Em)

1 Light-Year equals 0.0094607304725808 exameter.

Light-Year to Zettameter

1 ly = 0.0000094607304725808 Zm

1 Light-Year (ly) = 0.0000094607304725808 Zettameter (Zm)

1 Light-Year equals 0.0000094607304725808 zettameter.

Light-Year to Yottameter

1 ly = 9.4607304725808e-9 Ym

1 Light-Year (ly) = 9.4607304725808e-9 Yottameter (Ym)

1 Light-Year equals 9.4607304725808e-9 yottameter.

Light-Year to Cubit

1 ly = 20692761313606300 cubit

1 Light-Year (ly) = 20692761313606300 Cubits (cubit)

1 Light-Year equals 20692761313606300 cubits.

Light-Year to Span

1 ly = 41385522627212600 span

1 Light-Year (ly) = 41385522627212600 Spans (span)

1 Light-Year equals 41385522627212600 spans.

Light-Year to Hand

1 ly = 93117425911228350 hh

1 Light-Year (ly) = 93117425911228350 Hands (hh)

1 Light-Year equals 93117425911228350 hands.

Light-Year to Palm

1 ly = 124156567881637800 palm

1 Light-Year (ly) = 124156567881637800 Palms (palm)

1 Light-Year equals 124156567881637800 palms.

Light-Year to Digit

1 ly = 496626271526551200 digit

1 Light-Year (ly) = 496626271526551200 Digits (digit)

1 Light-Year equals 496626271526551200 digits.

Light-Year to Link

1 ly = 47029002985468856 link

1 Light-Year (ly) = 47029002985468856 Links (link)

1 Light-Year equals 47029002985468856 links.

Light-Year to Ell

1 ly = 8277104525442520 ell

1 Light-Year (ly) = 8277104525442520 Ells (ell)

1 Light-Year equals 8277104525442520 ells.

Light-Year to Barleycorn

1 ly = 1116969359218512400 barleycorn

1 Light-Year (ly) = 1116969359218512400 Barleycorns (barleycorn)

1 Light-Year equals 1116969359218512400 barleycorns.

Light-Year to Astronomical Unit

1 ly = 63241.07708426628 AU

1 Light-Year (ly) = 63241.07708426628 Astronomical Units (AU)

1 Light-Year equals 63241.07708426628 Astronomicalunits.

Light-Year to Light-Second

1 ly = 31557600 ls

1 Light-Year (ly) = 31557600 Light-Seconds (ls)

1 Light-Year equals 31557600 Light-Seconds.

Light-Year to Light-Minute

1 ly = 525960 lm

1 Light-Year (ly) = 525960 Light-Minutes (lm)

1 Light-Year equals 525960 Light-Minutes.

Light-Year to Light-Hour

1 ly = 8765.999998375542 lh

1 Light-Year (ly) = 8765.999998375542 Light-Hours (lh)

1 Light-Year equals 8765.999998375542 Light-Hours.

Light-Year to Light-Day

1 ly = 365.25000001692143 ld

1 Light-Year (ly) = 365.25000001692143 Light-Days (ld)

1 Light-Year equals 365.25000001692143 Light-Days.

Light-Year to Parsec

1 ly = 0.3066013937855503 pc

1 Light-Year (ly) = 0.3066013937855503 Parsec (pc)

1 Light-Year equals 0.3066013937855503 Parsec.

Light-Year to Kiloparsec

1 ly = 0.0003066013937855503 kpc

1 Light-Year (ly) = 0.0003066013937855503 Kiloparsec (kpc)

1 Light-Year equals 0.0003066013937855503 Kiloparsec.

Light-Year to Megaparsec

1 ly = 3.066013937855503e-7 Mpc

1 Light-Year (ly) = 3.066013937855503e-7 Megaparsec (Mpc)

1 Light-Year equals 3.066013937855503e-7 Megaparsec.

Light-Year to Gigaparsec

1 ly = 3.066013937855503e-10 Gpc

1 Light-Year (ly) = 3.066013937855503e-10 Gigaparsec (Gpc)

1 Light-Year equals 3.066013937855503e-10 Gigaparsec.

Light-Year to Nautical Mile

1 ly = 5108385784330.886 NM

1 Light-Year (ly) = 5108385784330.886 Nautical Miles (NM)

1 Light-Year equals 5108385784330.886 Nautical Miles.

Light-Year to Fathom

1 ly = 5173190328401575 ftm

1 Light-Year (ly) = 5173190328401575 Fathoms (ftm)

1 Light-Year equals 5173190328401575 fathoms.

Light-Year to Cable Length

1 ly = 43109919403346.46 cable

1 Light-Year (ly) = 43109919403346.46 Cable Lengths (cable)

1 Light-Year equals 43109919403346.46 Cable Length s.

Light-Year to Nautical League

1 ly = 1702795261443.6284 NL

1 Light-Year (ly) = 1702795261443.6284 Nautical Leagues (NL)

1 Light-Year equals 1702795261443.6284 Nautical Leagues.

Light-Year to Thou

1 ly = 372469703644913400000 mil

1 Light-Year (ly) = 372469703644913400000 Thous (mil)

1 Light-Year equals 372469703644913400000 thous.

Light-Year to Rod

1 ly = 1881160119418754.2 rd

1 Light-Year (ly) = 1881160119418754.2 Rods (rd)

1 Light-Year equals 1881160119418754.2 rods.

Light-Year to Chain

1 ly = 470290029854688.56 ch

1 Light-Year (ly) = 470290029854688.56 Chains (ch)

1 Light-Year equals 470290029854688.56 chains.

Light-Year to Furlong

1 ly = 47029002985468.86 fur

1 Light-Year (ly) = 47029002985468.86 Furlongs (fur)

1 Light-Year equals 47029002985468.86 furlongs.

Light-Year to Mile

1 ly = 5878625373183.607 mi

1 Light-Year (ly) = 5878625373183.607 Miles (mi)

1 Light-Year equals 5878625373183.607 miles.

Light-Year to League

1 ly = 1959541791061.2026 lea

1 Light-Year (ly) = 1959541791061.2026 Leagues (lea)

1 Light-Year equals 1959541791061.2026 leagues.

Convert Astronomical Unit to Other Units

Astronomical Unit to Inch

1 AU = 5889679948818.897 in

1 Astronomical Unit (AU) = 5889679948818.897 Inches (in)

1 Astronomicalunit equals 5889679948818.897 inches.

Astronomical Unit to Foot

1 AU = 490806662401.57477 ft

1 Astronomical Unit (AU) = 490806662401.57477 Feet (ft)

1 Astronomicalunit equals 490806662401.57477 feet.

Astronomical Unit to Feet

1 AU = 490806662401.57477 ft

1 Astronomical Unit (AU) = 490806662401.57477 Feets (ft)

1 Astronomicalunit equals 490806662401.57477 feets.

Astronomical Unit to Centimeter

1 AU = 14959787070000 cm

1 Astronomical Unit (AU) = 14959787070000 Centimeters (cm)

1 Astronomicalunit equals 14959787070000 centimeters.

Astronomical Unit to Meter

1 AU = 149597870700 m

1 Astronomical Unit (AU) = 149597870700 Meters (m)

1 Astronomicalunit equals 149597870700 meters.

Astronomical Unit to Kilometer

1 AU = 149597870.7 km

1 Astronomical Unit (AU) = 149597870.7 Kilometers (km)

1 Astronomicalunit equals 149597870.7 kilometers.

Astronomical Unit to Millimeter

1 AU = 149597870700000 mm

1 Astronomical Unit (AU) = 149597870700000 Millimeters (mm)

1 Astronomicalunit equals 149597870700000 millimeters.

Astronomical Unit to Yard

1 AU = 163602220800.52493 yd

1 Astronomical Unit (AU) = 163602220800.52493 Yards (yd)

1 Astronomicalunit equals 163602220800.52493 yards.

Astronomical Unit to Yoctometer

1 AU = 1.4959787070000001e+35 ym

1 Astronomical Unit (AU) = 1.4959787070000001e+35 Yoctometers (ym)

1 Astronomicalunit equals 1.4959787070000001e+35 yoctometers.

Astronomical Unit to Zeptometer

1 AU = 1.4959787070000001e+32 zm

1 Astronomical Unit (AU) = 1.4959787070000001e+32 Zeptometers (zm)

1 Astronomicalunit equals 1.4959787070000001e+32 zeptometers.

Astronomical Unit to Attometer

1 AU = 1.4959787069999999e+29 am

1 Astronomical Unit (AU) = 1.4959787069999999e+29 Attometers (am)

1 Astronomicalunit equals 1.4959787069999999e+29 attometers.

Astronomical Unit to Femtometer

1 AU = 1.4959787069999998e+26 fm

1 Astronomical Unit (AU) = 1.4959787069999998e+26 Femtometers (fm)

1 Astronomicalunit equals 1.4959787069999998e+26 femtometers.

Astronomical Unit to Picometer

1 AU = 1.495978707e+23 pm

1 Astronomical Unit (AU) = 1.495978707e+23 Picometers (pm)

1 Astronomicalunit equals 1.495978707e+23 picometers.

Astronomical Unit to Nanometer

1 AU = 149597870700000000000 nm

1 Astronomical Unit (AU) = 149597870700000000000 Nanometers (nm)

1 Astronomicalunit equals 149597870700000000000 nanometers.

Astronomical Unit to Micrometer

1 AU = 149597870700000000 µm

1 Astronomical Unit (AU) = 149597870700000000 Micrometers (µm)

1 Astronomicalunit equals 149597870700000000 micrometers.

Astronomical Unit to Decimeter

1 AU = 1495978707000 dm

1 Astronomical Unit (AU) = 1495978707000 Decimeters (dm)

1 Astronomicalunit equals 1495978707000 decimeters.

Astronomical Unit to Decameter

1 AU = 14959787070 dam

1 Astronomical Unit (AU) = 14959787070 Decameters (dam)

1 Astronomicalunit equals 14959787070 decameters.

Astronomical Unit to Hectometer

1 AU = 1495978707 hm

1 Astronomical Unit (AU) = 1495978707 Hectometers (hm)

1 Astronomicalunit equals 1495978707 hectometers.

Astronomical Unit to Megameter

1 AU = 149597.8707 Mm

1 Astronomical Unit (AU) = 149597.8707 Megameters (Mm)

1 Astronomicalunit equals 149597.8707 megameters.

Astronomical Unit to Gigameter

1 AU = 149.5978707 Gm

1 Astronomical Unit (AU) = 149.5978707 Gigameters (Gm)

1 Astronomicalunit equals 149.5978707 gigameters.

Astronomical Unit to Terameter

1 AU = 0.1495978707 Tm

1 Astronomical Unit (AU) = 0.1495978707 Terameter (Tm)

1 Astronomicalunit equals 0.1495978707 terameter.

Astronomical Unit to Petameter

1 AU = 0.0001495978707 Pm

1 Astronomical Unit (AU) = 0.0001495978707 Petameter (Pm)

1 Astronomicalunit equals 0.0001495978707 petameter.

Astronomical Unit to Exameter

1 AU = 1.495978707e-7 Em

1 Astronomical Unit (AU) = 1.495978707e-7 Exameter (Em)

1 Astronomicalunit equals 1.495978707e-7 exameter.

Astronomical Unit to Zettameter

1 AU = 1.495978707e-10 Zm

1 Astronomical Unit (AU) = 1.495978707e-10 Zettameter (Zm)

1 Astronomicalunit equals 1.495978707e-10 zettameter.

Astronomical Unit to Yottameter

1 AU = 1.495978707e-13 Ym

1 Astronomical Unit (AU) = 1.495978707e-13 Yottameter (Ym)

1 Astronomicalunit equals 1.495978707e-13 yottameter.

Astronomical Unit to Cubit

1 AU = 327204441601.04987 cubit

1 Astronomical Unit (AU) = 327204441601.04987 Cubits (cubit)

1 Astronomicalunit equals 327204441601.04987 cubits.

Astronomical Unit to Span

1 AU = 654408883202.0997 span

1 Astronomical Unit (AU) = 654408883202.0997 Spans (span)

1 Astronomicalunit equals 654408883202.0997 spans.

Astronomical Unit to Hand

1 AU = 1472419987204.7244 hh

1 Astronomical Unit (AU) = 1472419987204.7244 Hands (hh)

1 Astronomicalunit equals 1472419987204.7244 hands.

Astronomical Unit to Palm

1 AU = 1963226649606.299 palm

1 Astronomical Unit (AU) = 1963226649606.299 Palms (palm)

1 Astronomicalunit equals 1963226649606.299 palms.

Astronomical Unit to Digit

1 AU = 7852906598425.196 digit

1 Astronomical Unit (AU) = 7852906598425.196 Digits (digit)

1 Astronomicalunit equals 7852906598425.196 digits.

Astronomical Unit to Link

1 AU = 743646458184.2042 link

1 Astronomical Unit (AU) = 743646458184.2042 Links (link)

1 Astronomicalunit equals 743646458184.2042 links.

Astronomical Unit to Ell

1 AU = 130881776640.41995 ell

1 Astronomical Unit (AU) = 130881776640.41995 Ells (ell)

1 Astronomicalunit equals 130881776640.41995 ells.

Astronomical Unit to Barleycorn

1 AU = 17662086269185.36 barleycorn

1 Astronomical Unit (AU) = 17662086269185.36 Barleycorns (barleycorn)

1 Astronomicalunit equals 17662086269185.36 barleycorns.

Astronomical Unit to Light-Second

1 AU = 499.00478383615643 ls

1 Astronomical Unit (AU) = 499.00478383615643 Light-Seconds (ls)

1 Astronomicalunit equals 499.00478383615643 Light-Seconds.

Astronomical Unit to Light-Minute

1 AU = 8.316746397269274 lm

1 Astronomical Unit (AU) = 8.316746397269274 Light-Minutes (lm)

1 Astronomicalunit equals 8.316746397269274 Light-Minutes.

Astronomical Unit to Light-Hour

1 AU = 0.13861243992880115 lh

1 Astronomical Unit (AU) = 0.13861243992880115 Light-Hour (lh)

1 Astronomicalunit equals 0.13861243992880115 Light-Hour.

Astronomical Unit to Light-Day

1 AU = 0.005775518331704566 ld

1 Astronomical Unit (AU) = 0.005775518331704566 Light-Day (ld)

1 Astronomicalunit equals 0.005775518331704566 Light-Day.

Astronomical Unit to Light-Year

1 AU = 0.00001581250740982066 ly

1 Astronomical Unit (AU) = 0.00001581250740982066 Light-Year (ly)

1 Astronomicalunit equals 0.00001581250740982066 Light-Year.

Astronomical Unit to Parsec

1 AU = 0.000004848136811095356 pc

1 Astronomical Unit (AU) = 0.000004848136811095356 Parsec (pc)

1 Astronomicalunit equals 0.000004848136811095356 Parsec.

Astronomical Unit to Kiloparsec

1 AU = 4.848136811095355e-9 kpc

1 Astronomical Unit (AU) = 4.848136811095355e-9 Kiloparsec (kpc)

1 Astronomicalunit equals 4.848136811095355e-9 Kiloparsec.

Astronomical Unit to Megaparsec

1 AU = 4.848136811095356e-12 Mpc

1 Astronomical Unit (AU) = 4.848136811095356e-12 Megaparsec (Mpc)

1 Astronomicalunit equals 4.848136811095356e-12 Megaparsec.

Astronomical Unit to Gigaparsec

1 AU = 4.848136811095356e-15 Gpc

1 Astronomical Unit (AU) = 4.848136811095356e-15 Gigaparsec (Gpc)

1 Astronomicalunit equals 4.848136811095356e-15 Gigaparsec.

Astronomical Unit to Nautical Mile

1 AU = 80776388.06695464 NM

1 Astronomical Unit (AU) = 80776388.06695464 Nautical Miles (NM)

1 Astronomicalunit equals 80776388.06695464 Nautical Miles.

Astronomical Unit to Fathom

1 AU = 81801110400.26247 ftm

1 Astronomical Unit (AU) = 81801110400.26247 Fathoms (ftm)

1 Astronomicalunit equals 81801110400.26247 fathoms.

Astronomical Unit to Cable Length

1 AU = 681675920.0021873 cable

1 Astronomical Unit (AU) = 681675920.0021873 Cable Lengths (cable)

1 Astronomicalunit equals 681675920.0021873 Cable Length s.

Astronomical Unit to Nautical League

1 AU = 26925462.688984882 NL

1 Astronomical Unit (AU) = 26925462.688984882 Nautical Leagues (NL)

1 Astronomicalunit equals 26925462.688984882 Nautical Leagues.

Astronomical Unit to Thou

1 AU = 5889679948818897 mil

1 Astronomical Unit (AU) = 5889679948818897 Thous (mil)

1 Astronomicalunit equals 5889679948818897 thous.

Astronomical Unit to Rod

1 AU = 29745858327.368168 rd

1 Astronomical Unit (AU) = 29745858327.368168 Rods (rd)

1 Astronomicalunit equals 29745858327.368168 rods.

Astronomical Unit to Chain

1 AU = 7436464581.842042 ch

1 Astronomical Unit (AU) = 7436464581.842042 Chains (ch)

1 Astronomicalunit equals 7436464581.842042 chains.

Astronomical Unit to Furlong

1 AU = 743646458.1842042 fur

1 Astronomical Unit (AU) = 743646458.1842042 Furlongs (fur)

1 Astronomicalunit equals 743646458.1842042 furlongs.

Astronomical Unit to Mile

1 AU = 92955807.27302553 mi

1 Astronomical Unit (AU) = 92955807.27302553 Miles (mi)

1 Astronomicalunit equals 92955807.27302553 miles.

Astronomical Unit to League

1 AU = 30985269.09100851 lea

1 Astronomical Unit (AU) = 30985269.09100851 Leagues (lea)

1 Astronomicalunit equals 30985269.09100851 leagues.