Convert Parsec to Light-Year Online

About Parsec to Light-Year Conversion

This converter converts Parsec (pc) to Light-Year (ly). One Parsec (pc) equals 3.2615637771674364 Light-Year (ly).

Formula:

1 Parsec (pc) = 3.2615637771674364 Light-Year (ly)

Example:

1 pc = 3.2615637771674364 ly
2 pc = 6.523127554334873 ly

Parsec (pc) to Light-Year (ly) Conversion

Parsec to Light-Year conversion explained with exact factors, step-by-step examples, and situations where this conversion is commonly used.

Conversion Formula

Light-Year = Parsec × 3.261564

To convert Parsec (pc) to Light-Year (ly), multiply the value by 3.261564. This factor is obtained by comparing their exact meter definitions.

Worked Example

Convert 1 pc to ly.

  • Step 1: Write the formula: ly = pc × 3.261564
  • Step 2: Substitute: 1 × 3.261564
  • Step 3: Result: 3.261564 ly
So, 1 pc = 3.261564 ly.

About the Units

Parsec (pc)

One Parsec (pc) equals 3.261564 Light-Year (ly)

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

Light-Year (ly)

One Light-Year (ly) equals 0.306601 Parsec (pc)

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

Where This Conversion Is Used

  • Converting values from Parsec to Light-Year for engineering or scientific workflows.
  • Used when normalizing mixed-unit datasets requiring consistent Light-Year 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 Light-Year (ly) are in 1 Parsec (pc)?

1 pc = 3.261564 ly.

What is the formula for converting Parsec (pc) to Light-Year (ly)?

Multiply the pc value by 3.261564.

Can I reverse the conversion?

Yes. 1 ly = 0.306601 pc.

Conclusion

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

Quick Links for Unit Converters

Convert Parsec to Other Units

Parsec to Inch

1 pc = 1214833693500539400 in

1 Parsec (pc) = 1214833693500539400 Inches (in)

1 Parsec equals 1214833693500539400 inches.

Parsec to Foot

1 pc = 101236141125044940 ft

1 Parsec (pc) = 101236141125044940 Feet (ft)

1 Parsec equals 101236141125044940 feet.

Parsec to Feet

1 pc = 101236141125044940 ft

1 Parsec (pc) = 101236141125044940 Feets (ft)

1 Parsec equals 101236141125044940 feets.

Parsec to Centimeter

1 pc = 3085677581491370000 cm

1 Parsec (pc) = 3085677581491370000 Centimeters (cm)

1 Parsec equals 3085677581491370000 centimeters.

Parsec to Meter

1 pc = 30856775814913700 m

1 Parsec (pc) = 30856775814913700 Meters (m)

1 Parsec equals 30856775814913700 meters.

Parsec to Kilometer

1 pc = 30856775814913.7 km

1 Parsec (pc) = 30856775814913.7 Kilometers (km)

1 Parsec equals 30856775814913.7 kilometers.

Parsec to Millimeter

1 pc = 30856775814913700000 mm

1 Parsec (pc) = 30856775814913700000 Millimeters (mm)

1 Parsec equals 30856775814913700000 millimeters.

Parsec to Yard

1 pc = 33745380375014984 yd

1 Parsec (pc) = 33745380375014984 Yards (yd)

1 Parsec equals 33745380375014984 yards.

Parsec to Yoctometer

1 pc = 3.0856775814913705e+40 ym

1 Parsec (pc) = 3.0856775814913705e+40 Yoctometers (ym)

1 Parsec equals 3.0856775814913705e+40 yoctometers.

Parsec to Zeptometer

1 pc = 3.08567758149137e+37 zm

1 Parsec (pc) = 3.08567758149137e+37 Zeptometers (zm)

1 Parsec equals 3.08567758149137e+37 zeptometers.

Parsec to Attometer

1 pc = 3.08567758149137e+34 am

1 Parsec (pc) = 3.08567758149137e+34 Attometers (am)

1 Parsec equals 3.08567758149137e+34 attometers.

Parsec to Femtometer

1 pc = 3.0856775814913698e+31 fm

1 Parsec (pc) = 3.0856775814913698e+31 Femtometers (fm)

1 Parsec equals 3.0856775814913698e+31 femtometers.

Parsec to Picometer

1 pc = 3.08567758149137e+28 pm

1 Parsec (pc) = 3.08567758149137e+28 Picometers (pm)

1 Parsec equals 3.08567758149137e+28 picometers.

Parsec to Nanometer

1 pc = 3.08567758149137e+25 nm

1 Parsec (pc) = 3.08567758149137e+25 Nanometers (nm)

1 Parsec equals 3.08567758149137e+25 nanometers.

Parsec to Micrometer

1 pc = 3.08567758149137e+22 µm

1 Parsec (pc) = 3.08567758149137e+22 Micrometers (µm)

1 Parsec equals 3.08567758149137e+22 micrometers.

Parsec to Decimeter

1 pc = 308567758149136960 dm

1 Parsec (pc) = 308567758149136960 Decimeters (dm)

1 Parsec equals 308567758149136960 decimeters.

Parsec to Decameter

1 pc = 3085677581491370 dam

1 Parsec (pc) = 3085677581491370 Decameters (dam)

1 Parsec equals 3085677581491370 decameters.

Parsec to Hectometer

1 pc = 308567758149137 hm

1 Parsec (pc) = 308567758149137 Hectometers (hm)

1 Parsec equals 308567758149137 hectometers.

Parsec to Megameter

1 pc = 30856775814.9137 Mm

1 Parsec (pc) = 30856775814.9137 Megameters (Mm)

1 Parsec equals 30856775814.9137 megameters.

Parsec to Gigameter

1 pc = 30856775.8149137 Gm

1 Parsec (pc) = 30856775.8149137 Gigameters (Gm)

1 Parsec equals 30856775.8149137 gigameters.

Parsec to Terameter

1 pc = 30856.7758149137 Tm

1 Parsec (pc) = 30856.7758149137 Terameters (Tm)

1 Parsec equals 30856.7758149137 terameters.

Parsec to Petameter

1 pc = 30.8567758149137 Pm

1 Parsec (pc) = 30.8567758149137 Petameters (Pm)

1 Parsec equals 30.8567758149137 petameters.

Parsec to Exameter

1 pc = 0.0308567758149137 Em

1 Parsec (pc) = 0.0308567758149137 Exameter (Em)

1 Parsec equals 0.0308567758149137 exameter.

Parsec to Zettameter

1 pc = 0.0000308567758149137 Zm

1 Parsec (pc) = 0.0000308567758149137 Zettameter (Zm)

1 Parsec equals 0.0000308567758149137 zettameter.

Parsec to Yottameter

1 pc = 3.0856775814913703e-8 Ym

1 Parsec (pc) = 3.0856775814913703e-8 Yottameter (Ym)

1 Parsec equals 3.0856775814913703e-8 yottameter.

Parsec to Cubit

1 pc = 67490760750029970 cubit

1 Parsec (pc) = 67490760750029970 Cubits (cubit)

1 Parsec equals 67490760750029970 cubits.

Parsec to Span

1 pc = 134981521500059940 span

1 Parsec (pc) = 134981521500059940 Spans (span)

1 Parsec equals 134981521500059940 spans.

Parsec to Hand

1 pc = 303708423375134850 hh

1 Parsec (pc) = 303708423375134850 Hands (hh)

1 Parsec equals 303708423375134850 hands.

Parsec to Palm

1 pc = 404944564500179800 palm

1 Parsec (pc) = 404944564500179800 Palms (palm)

1 Parsec equals 404944564500179800 palms.

Parsec to Digit

1 pc = 1619778258000719000 digit

1 Parsec (pc) = 1619778258000719000 Digits (digit)

1 Parsec equals 1619778258000719000 digits.

Parsec to Link

1 pc = 153388092613704450 link

1 Parsec (pc) = 153388092613704450 Links (link)

1 Parsec equals 153388092613704450 links.

Parsec to Ell

1 pc = 26996304300011984 ell

1 Parsec (pc) = 26996304300011984 Ells (ell)

1 Parsec equals 26996304300011984 ells.

Parsec to Barleycorn

1 pc = 3643066802233022500 barleycorn

1 Parsec (pc) = 3643066802233022500 Barleycorns (barleycorn)

1 Parsec equals 3643066802233022500 barleycorns.

Parsec to Astronomical Unit

1 pc = 206264.80624709654 AU

1 Parsec (pc) = 206264.80624709654 Astronomical Units (AU)

1 Parsec equals 206264.80624709654 Astronomicalunits.

Parsec to Light-Second

1 pc = 102927125.0543391 ls

1 Parsec (pc) = 102927125.0543391 Light-Seconds (ls)

1 Parsec equals 102927125.0543391 Light-Seconds.

Parsec to Light-Minute

1 pc = 1715452.0842389849 lm

1 Parsec (pc) = 1715452.0842389849 Light-Minutes (lm)

1 Parsec equals 1715452.0842389849 Light-Minutes.

Parsec to Light-Hour

1 pc = 28590.86806535148 lh

1 Parsec (pc) = 28590.86806535148 Light-Hours (lh)

1 Parsec equals 28590.86806535148 Light-Hours.

Parsec to Light-Day

1 pc = 1191.2861696655964 ld

1 Parsec (pc) = 1191.2861696655964 Light-Days (ld)

1 Parsec equals 1191.2861696655964 Light-Days.

Parsec to Light-Year

1 pc = 3.2615637771674364 ly

1 Parsec (pc) = 3.2615637771674364 Light-Years (ly)

1 Parsec equals 3.2615637771674364 Light-Years.

Parsec to Kiloparsec

1 pc = 0.001 kpc

1 Parsec (pc) = 0.001 Kiloparsec (kpc)

1 Parsec equals 0.001 Kiloparsec.

Parsec to Megaparsec

1 pc = 0.000001 Mpc

1 Parsec (pc) = 0.000001 Megaparsec (Mpc)

1 Parsec equals 0.000001 Megaparsec.

Parsec to Gigaparsec

1 pc = 1e-9 Gpc

1 Parsec (pc) = 1e-9 Gigaparsec (Gpc)

1 Parsec equals 1e-9 Gigaparsec.

Parsec to Nautical Mile

1 pc = 16661326033970.68 NM

1 Parsec (pc) = 16661326033970.68 Nautical Miles (NM)

1 Parsec equals 16661326033970.68 Nautical Miles.

Parsec to Fathom

1 pc = 16872690187507492 ftm

1 Parsec (pc) = 16872690187507492 Fathoms (ftm)

1 Parsec equals 16872690187507492 fathoms.

Parsec to Cable Length

1 pc = 140605751562562.44 cable

1 Parsec (pc) = 140605751562562.44 Cable Lengths (cable)

1 Parsec equals 140605751562562.44 Cable Length s.

Parsec to Nautical League

1 pc = 5553775344656.894 NL

1 Parsec (pc) = 5553775344656.894 Nautical Leagues (NL)

1 Parsec equals 5553775344656.894 Nautical Leagues.

Parsec to Thou

1 pc = 1.2148336935005394e+21 mil

1 Parsec (pc) = 1.2148336935005394e+21 Thous (mil)

1 Parsec equals 1.2148336935005394e+21 thous.

Parsec to Rod

1 pc = 6135523704548178 rd

1 Parsec (pc) = 6135523704548178 Rods (rd)

1 Parsec equals 6135523704548178 rods.

Parsec to Chain

1 pc = 1533880926137044.5 ch

1 Parsec (pc) = 1533880926137044.5 Chains (ch)

1 Parsec equals 1533880926137044.5 chains.

Parsec to Furlong

1 pc = 153388092613704.47 fur

1 Parsec (pc) = 153388092613704.47 Furlongs (fur)

1 Parsec equals 153388092613704.47 furlongs.

Parsec to Mile

1 pc = 19173511576713.06 mi

1 Parsec (pc) = 19173511576713.06 Miles (mi)

1 Parsec equals 19173511576713.06 miles.

Parsec to League

1 pc = 6391170525571.02 lea

1 Parsec (pc) = 6391170525571.02 Leagues (lea)

1 Parsec equals 6391170525571.02 leagues.

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.