Convert Kilometer to Light-Second Online

About Kilometer to Light-Second Conversion

This converter converts Kilometer (km) to Light-Second (ls). One Kilometer (km) equals 0.0000033356409519815205 Light-Second (ls).

Formula:

1 Kilometer (km) = 0.0000033356409519815205 Light-Second (ls)

Example:

1 km = 0.0000033356409519815205 ls
2 km = 0.000006671281903963041 ls

Kilometer (km) to Light-Second (ls) Conversion

Convert Kilometer to Light-Second using the exact conversion factor. This page provides the formula, worked examples, and real-world use cases for practical understanding.

Conversion Formula

Light-Second = Kilometer × 3.335641e-6

To convert Kilometer (km) to Light-Second (ls), multiply the value by 3.335641e-6. This factor is obtained by comparing their exact meter definitions.

Worked Example

Convert 1 km to ls.

  • Step 1: Write the formula: ls = km × 3.335641e-6
  • Step 2: Substitute: 1 × 3.335641e-6
  • Step 3: Result: 3.335641e-6 ls
So, 1 km = 3.335641e-6 ls.

About the Units

Kilometer (km)

One Kilometer (km) equals 3.335641e-6 Light-Second (ls)

A widely used unit across scientific, engineering, and measurement contexts.

Light-Second (ls)

One Light-Second (ls) equals 299792.458 Kilometer (km)

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

Where This Conversion Is Used

  • Converting values from Kilometer to Light-Second for engineering or scientific workflows.
  • Used when normalizing mixed-unit datasets requiring consistent Light-Second 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-Second (ls) are in 1 Kilometer (km)?

1 km = 3.335641e-6 ls.

What is the formula for converting Kilometer (km) to Light-Second (ls)?

Multiply the km value by 3.335641e-6.

Can I reverse the conversion?

Yes. 1 ls = 299792.458 km.

Conclusion

By applying the conversion factor shown above, you can reliably convert Kilometer (km) to Light-Second (ls) for use in scientific analysis, engineering calculations, academic work, or daily measurements.

Quick Links for Unit Converters

Convert Kilometer to Other Units

Kilometer to Inch

1 km = 39370.078740157485 in

1 Kilometer (km) = 39370.078740157485 Inches (in)

1 kilometer equals 39370.078740157485 inches.

Kilometer to Foot

1 km = 3280.839895013123 ft

1 Kilometer (km) = 3280.839895013123 Feet (ft)

1 kilometer equals 3280.839895013123 feet.

Kilometer to Feet

1 km = 3280.839895013123 ft

1 Kilometer (km) = 3280.839895013123 Feets (ft)

1 kilometer equals 3280.839895013123 feets.

Kilometer to Centimeter

1 km = 100000 cm

1 Kilometer (km) = 100000 Centimeters (cm)

1 kilometer equals 100000 centimeters.

Kilometer to Meter

1 km = 1000 m

1 Kilometer (km) = 1000 Meters (m)

1 kilometer equals 1000 meters.

Kilometer to Millimeter

1 km = 1000000 mm

1 Kilometer (km) = 1000000 Millimeters (mm)

1 kilometer equals 1000000 millimeters.

Kilometer to Yard

1 km = 1093.6132983377079 yd

1 Kilometer (km) = 1093.6132983377079 Yards (yd)

1 kilometer equals 1093.6132983377079 yards.

Kilometer to Yoctometer

1 km = 1e+27 ym

1 Kilometer (km) = 1e+27 Yoctometers (ym)

1 kilometer equals 1e+27 yoctometers.

Kilometer to Zeptometer

1 km = 1.0000000000000001e+24 zm

1 Kilometer (km) = 1.0000000000000001e+24 Zeptometers (zm)

1 kilometer equals 1.0000000000000001e+24 zeptometers.

Kilometer to Attometer

1 km = 999999999999999900000 am

1 Kilometer (km) = 999999999999999900000 Attometers (am)

1 kilometer equals 999999999999999900000 attometers.

Kilometer to Femtometer

1 km = 999999999999999900 fm

1 Kilometer (km) = 999999999999999900 Femtometers (fm)

1 kilometer equals 999999999999999900 femtometers.

Kilometer to Picometer

1 km = 1000000000000000 pm

1 Kilometer (km) = 1000000000000000 Picometers (pm)

1 kilometer equals 1000000000000000 picometers.

Kilometer to Nanometer

1 km = 999999999999.9999 nm

1 Kilometer (km) = 999999999999.9999 Nanometers (nm)

1 kilometer equals 999999999999.9999 nanometers.

Kilometer to Micrometer

1 km = 1000000000 µm

1 Kilometer (km) = 1000000000 Micrometers (µm)

1 kilometer equals 1000000000 micrometers.

Kilometer to Decimeter

1 km = 10000 dm

1 Kilometer (km) = 10000 Decimeters (dm)

1 kilometer equals 10000 decimeters.

Kilometer to Decameter

1 km = 100 dam

1 Kilometer (km) = 100 Decameters (dam)

1 kilometer equals 100 decameters.

Kilometer to Hectometer

1 km = 10 hm

1 Kilometer (km) = 10 Hectometers (hm)

1 kilometer equals 10 hectometers.

Kilometer to Megameter

1 km = 0.001 Mm

1 Kilometer (km) = 0.001 Megameter (Mm)

1 kilometer equals 0.001 megameter.

Kilometer to Gigameter

1 km = 0.000001 Gm

1 Kilometer (km) = 0.000001 Gigameter (Gm)

1 kilometer equals 0.000001 gigameter.

Kilometer to Terameter

1 km = 1e-9 Tm

1 Kilometer (km) = 1e-9 Terameter (Tm)

1 kilometer equals 1e-9 terameter.

Kilometer to Petameter

1 km = 1e-12 Pm

1 Kilometer (km) = 1e-12 Petameter (Pm)

1 kilometer equals 1e-12 petameter.

Kilometer to Exameter

1 km = 1e-15 Em

1 Kilometer (km) = 1e-15 Exameter (Em)

1 kilometer equals 1e-15 exameter.

Kilometer to Zettameter

1 km = 1e-18 Zm

1 Kilometer (km) = 1e-18 Zettameter (Zm)

1 kilometer equals 1e-18 zettameter.

Kilometer to Yottameter

1 km = 1.0000000000000001e-21 Ym

1 Kilometer (km) = 1.0000000000000001e-21 Yottameter (Ym)

1 kilometer equals 1.0000000000000001e-21 yottameter.

Kilometer to Cubit

1 km = 2187.2265966754157 cubit

1 Kilometer (km) = 2187.2265966754157 Cubits (cubit)

1 kilometer equals 2187.2265966754157 cubits.

Kilometer to Span

1 km = 4374.4531933508315 span

1 Kilometer (km) = 4374.4531933508315 Spans (span)

1 kilometer equals 4374.4531933508315 spans.

Kilometer to Hand

1 km = 9842.519685039371 hh

1 Kilometer (km) = 9842.519685039371 Hands (hh)

1 kilometer equals 9842.519685039371 hands.

Kilometer to Palm

1 km = 13123.359580052493 palm

1 Kilometer (km) = 13123.359580052493 Palms (palm)

1 kilometer equals 13123.359580052493 palms.

Kilometer to Digit

1 km = 52493.43832020997 digit

1 Kilometer (km) = 52493.43832020997 Digits (digit)

1 kilometer equals 52493.43832020997 digits.

Kilometer to Link

1 km = 4970.969537898672 link

1 Kilometer (km) = 4970.969537898672 Links (link)

1 kilometer equals 4970.969537898672 links.

Kilometer to Ell

1 km = 874.8906386701663 ell

1 Kilometer (km) = 874.8906386701663 Ells (ell)

1 kilometer equals 874.8906386701663 ells.

Kilometer to Barleycorn

1 km = 118063.75442739078 barleycorn

1 Kilometer (km) = 118063.75442739078 Barleycorns (barleycorn)

1 kilometer equals 118063.75442739078 barleycorns.

Kilometer to Astronomical Unit

1 km = 6.684587122268446e-9 AU

1 Kilometer (km) = 6.684587122268446e-9 Astronomical Unit (AU)

1 kilometer equals 6.684587122268446e-9 Astronomicalunit.

Kilometer to Light-Second

1 km = 0.0000033356409519815205 ls

1 Kilometer (km) = 0.0000033356409519815205 Light-Second (ls)

1 kilometer equals 0.0000033356409519815205 Light-Second.

Kilometer to Light-Minute

1 km = 5.5594015866358675e-8 lm

1 Kilometer (km) = 5.5594015866358675e-8 Light-Minute (lm)

1 kilometer equals 5.5594015866358675e-8 Light-Minute.

Kilometer to Light-Hour

1 km = 9.265669309342727e-10 lh

1 Kilometer (km) = 9.265669309342727e-10 Light-Hour (lh)

1 kilometer equals 9.265669309342727e-10 Light-Hour.

Kilometer to Light-Day

1 km = 3.8606955464537675e-11 ld

1 Kilometer (km) = 3.8606955464537675e-11 Light-Day (ld)

1 kilometer equals 3.8606955464537675e-11 Light-Day.

Kilometer to Light-Year

1 km = 1.0570008340246155e-13 ly

1 Kilometer (km) = 1.0570008340246155e-13 Light-Year (ly)

1 kilometer equals 1.0570008340246155e-13 Light-Year.

Kilometer to Parsec

1 km = 3.2407792894443624e-14 pc

1 Kilometer (km) = 3.2407792894443624e-14 Parsec (pc)

1 kilometer equals 3.2407792894443624e-14 Parsec.

Kilometer to Kiloparsec

1 km = 3.240779289444362e-17 kpc

1 Kilometer (km) = 3.240779289444362e-17 Kiloparsec (kpc)

1 kilometer equals 3.240779289444362e-17 Kiloparsec.

Kilometer to Megaparsec

1 km = 3.240779289444362e-20 Mpc

1 Kilometer (km) = 3.240779289444362e-20 Megaparsec (Mpc)

1 kilometer equals 3.240779289444362e-20 Megaparsec.

Kilometer to Gigaparsec

1 km = 3.2407792894443625e-23 Gpc

1 Kilometer (km) = 3.2407792894443625e-23 Gigaparsec (Gpc)

1 kilometer equals 3.2407792894443625e-23 Gigaparsec.

Kilometer to Nautical Mile

1 km = 0.5399568034557235 NM

1 Kilometer (km) = 0.5399568034557235 Nautical Mile (NM)

1 kilometer equals 0.5399568034557235 Nautical Mile.

Kilometer to Fathom

1 km = 546.8066491688539 ftm

1 Kilometer (km) = 546.8066491688539 Fathoms (ftm)

1 kilometer equals 546.8066491688539 fathoms.

Kilometer to Cable Length

1 km = 4.556722076407116 cable

1 Kilometer (km) = 4.556722076407116 Cable Lengths (cable)

1 kilometer equals 4.556722076407116 Cable Length s.

Kilometer to Nautical League

1 km = 0.17998560115190784 NL

1 Kilometer (km) = 0.17998560115190784 Nautical League (NL)

1 kilometer equals 0.17998560115190784 Nautical League.

Kilometer to Thou

1 km = 39370078.74015748 mil

1 Kilometer (km) = 39370078.74015748 Thous (mil)

1 kilometer equals 39370078.74015748 thous.

Kilometer to Rod

1 km = 198.83878151594686 rd

1 Kilometer (km) = 198.83878151594686 Rods (rd)

1 kilometer equals 198.83878151594686 rods.

Kilometer to Chain

1 km = 49.709695378986716 ch

1 Kilometer (km) = 49.709695378986716 Chains (ch)

1 kilometer equals 49.709695378986716 chains.

Kilometer to Furlong

1 km = 4.970969537898672 fur

1 Kilometer (km) = 4.970969537898672 Furlongs (fur)

1 kilometer equals 4.970969537898672 furlongs.

Kilometer to Mile

1 km = 0.621371192237334 mi

1 Kilometer (km) = 0.621371192237334 Mile (mi)

1 kilometer equals 0.621371192237334 mile.

Kilometer to League

1 km = 0.20712373074577797 lea

1 Kilometer (km) = 0.20712373074577797 League (lea)

1 kilometer equals 0.20712373074577797 league.

Convert Light-Second to Other Units

Light-Second to Inch

1 ls = 11802852677.165356 in

1 Light-Second (ls) = 11802852677.165356 Inches (in)

1 Light-Second equals 11802852677.165356 inches.

Light-Second to Foot

1 ls = 983571056.4304461 ft

1 Light-Second (ls) = 983571056.4304461 Feet (ft)

1 Light-Second equals 983571056.4304461 feet.

Light-Second to Feet

1 ls = 983571056.4304461 ft

1 Light-Second (ls) = 983571056.4304461 Feets (ft)

1 Light-Second equals 983571056.4304461 feets.

Light-Second to Centimeter

1 ls = 29979245800 cm

1 Light-Second (ls) = 29979245800 Centimeters (cm)

1 Light-Second equals 29979245800 centimeters.

Light-Second to Meter

1 ls = 299792458 m

1 Light-Second (ls) = 299792458 Meters (m)

1 Light-Second equals 299792458 meters.

Light-Second to Kilometer

1 ls = 299792.458 km

1 Light-Second (ls) = 299792.458 Kilometers (km)

1 Light-Second equals 299792.458 kilometers.

Light-Second to Millimeter

1 ls = 299792458000 mm

1 Light-Second (ls) = 299792458000 Millimeters (mm)

1 Light-Second equals 299792458000 millimeters.

Light-Second to Yard

1 ls = 327857018.8101487 yd

1 Light-Second (ls) = 327857018.8101487 Yards (yd)

1 Light-Second equals 327857018.8101487 yards.

Light-Second to Yoctometer

1 ls = 2.9979245800000003e+32 ym

1 Light-Second (ls) = 2.9979245800000003e+32 Yoctometers (ym)

1 Light-Second equals 2.9979245800000003e+32 yoctometers.

Light-Second to Zeptometer

1 ls = 2.9979245800000002e+29 zm

1 Light-Second (ls) = 2.9979245800000002e+29 Zeptometers (zm)

1 Light-Second equals 2.9979245800000002e+29 zeptometers.

Light-Second to Attometer

1 ls = 2.9979245799999998e+26 am

1 Light-Second (ls) = 2.9979245799999998e+26 Attometers (am)

1 Light-Second equals 2.9979245799999998e+26 attometers.

Light-Second to Femtometer

1 ls = 2.9979245799999998e+23 fm

1 Light-Second (ls) = 2.9979245799999998e+23 Femtometers (fm)

1 Light-Second equals 2.9979245799999998e+23 femtometers.

Light-Second to Picometer

1 ls = 299792458000000000000 pm

1 Light-Second (ls) = 299792458000000000000 Picometers (pm)

1 Light-Second equals 299792458000000000000 picometers.

Light-Second to Nanometer

1 ls = 299792458000000000 nm

1 Light-Second (ls) = 299792458000000000 Nanometers (nm)

1 Light-Second equals 299792458000000000 nanometers.

Light-Second to Micrometer

1 ls = 299792458000000 µm

1 Light-Second (ls) = 299792458000000 Micrometers (µm)

1 Light-Second equals 299792458000000 micrometers.

Light-Second to Decimeter

1 ls = 2997924580 dm

1 Light-Second (ls) = 2997924580 Decimeters (dm)

1 Light-Second equals 2997924580 decimeters.

Light-Second to Decameter

1 ls = 29979245.8 dam

1 Light-Second (ls) = 29979245.8 Decameters (dam)

1 Light-Second equals 29979245.8 decameters.

Light-Second to Hectometer

1 ls = 2997924.58 hm

1 Light-Second (ls) = 2997924.58 Hectometers (hm)

1 Light-Second equals 2997924.58 hectometers.

Light-Second to Megameter

1 ls = 299.792458 Mm

1 Light-Second (ls) = 299.792458 Megameters (Mm)

1 Light-Second equals 299.792458 megameters.

Light-Second to Gigameter

1 ls = 0.299792458 Gm

1 Light-Second (ls) = 0.299792458 Gigameter (Gm)

1 Light-Second equals 0.299792458 gigameter.

Light-Second to Terameter

1 ls = 0.000299792458 Tm

1 Light-Second (ls) = 0.000299792458 Terameter (Tm)

1 Light-Second equals 0.000299792458 terameter.

Light-Second to Petameter

1 ls = 2.99792458e-7 Pm

1 Light-Second (ls) = 2.99792458e-7 Petameter (Pm)

1 Light-Second equals 2.99792458e-7 petameter.

Light-Second to Exameter

1 ls = 2.99792458e-10 Em

1 Light-Second (ls) = 2.99792458e-10 Exameter (Em)

1 Light-Second equals 2.99792458e-10 exameter.

Light-Second to Zettameter

1 ls = 2.99792458e-13 Zm

1 Light-Second (ls) = 2.99792458e-13 Zettameter (Zm)

1 Light-Second equals 2.99792458e-13 zettameter.

Light-Second to Yottameter

1 ls = 2.99792458e-16 Ym

1 Light-Second (ls) = 2.99792458e-16 Yottameter (Ym)

1 Light-Second equals 2.99792458e-16 yottameter.

Light-Second to Cubit

1 ls = 655714037.6202974 cubit

1 Light-Second (ls) = 655714037.6202974 Cubits (cubit)

1 Light-Second equals 655714037.6202974 cubits.

Light-Second to Span

1 ls = 1311428075.2405949 span

1 Light-Second (ls) = 1311428075.2405949 Spans (span)

1 Light-Second equals 1311428075.2405949 spans.

Light-Second to Hand

1 ls = 2950713169.291339 hh

1 Light-Second (ls) = 2950713169.291339 Hands (hh)

1 Light-Second equals 2950713169.291339 hands.

Light-Second to Palm

1 ls = 3934284225.7217846 palm

1 Light-Second (ls) = 3934284225.7217846 Palms (palm)

1 Light-Second equals 3934284225.7217846 palms.

Light-Second to Digit

1 ls = 15737136902.887138 digit

1 Light-Second (ls) = 15737136902.887138 Digits (digit)

1 Light-Second equals 15737136902.887138 digits.

Light-Second to Link

1 ls = 1490259176.409767 link

1 Light-Second (ls) = 1490259176.409767 Links (link)

1 Light-Second equals 1490259176.409767 links.

Light-Second to Ell

1 ls = 262285615.04811898 ell

1 Light-Second (ls) = 262285615.04811898 Ells (ell)

1 Light-Second equals 262285615.04811898 ells.

Light-Second to Barleycorn

1 ls = 35394623140.495865 barleycorn

1 Light-Second (ls) = 35394623140.495865 Barleycorns (barleycorn)

1 Light-Second equals 35394623140.495865 barleycorns.

Light-Second to Astronomical Unit

1 ls = 0.002003988804100004 AU

1 Light-Second (ls) = 0.002003988804100004 Astronomical Unit (AU)

1 Light-Second equals 0.002003988804100004 Astronomicalunit.

Light-Second to Light-Minute

1 ls = 0.016666666666666666 lm

1 Light-Second (ls) = 0.016666666666666666 Light-Minute (lm)

1 Light-Second equals 0.016666666666666666 Light-Minute.

Light-Second to Light-Hour

1 ls = 0.00027777777772630186 lh

1 Light-Second (ls) = 0.00027777777772630186 Light-Hour (lh)

1 Light-Second equals 0.00027777777772630186 Light-Hour.

Light-Second to Light-Day

1 ls = 0.000011574074074610283 ld

1 Light-Second (ls) = 0.000011574074074610283 Light-Day (ld)

1 Light-Second equals 0.000011574074074610283 Light-Day.

Light-Second to Light-Year

1 ls = 3.168808781402895e-8 ly

1 Light-Second (ls) = 3.168808781402895e-8 Light-Year (ly)

1 Light-Second equals 3.168808781402895e-8 Light-Year.

Light-Second to Parsec

1 ls = 9.715611890180188e-9 pc

1 Light-Second (ls) = 9.715611890180188e-9 Parsec (pc)

1 Light-Second equals 9.715611890180188e-9 Parsec.

Light-Second to Kiloparsec

1 ls = 9.715611890180188e-12 kpc

1 Light-Second (ls) = 9.715611890180188e-12 Kiloparsec (kpc)

1 Light-Second equals 9.715611890180188e-12 Kiloparsec.

Light-Second to Megaparsec

1 ls = 9.715611890180187e-15 Mpc

1 Light-Second (ls) = 9.715611890180187e-15 Megaparsec (Mpc)

1 Light-Second equals 9.715611890180187e-15 Megaparsec.

Light-Second to Gigaparsec

1 ls = 9.715611890180188e-18 Gpc

1 Light-Second (ls) = 9.715611890180188e-18 Gigaparsec (Gpc)

1 Light-Second equals 9.715611890180188e-18 Gigaparsec.

Light-Second to Nautical Mile

1 ls = 161874.97732181425 NM

1 Light-Second (ls) = 161874.97732181425 Nautical Miles (NM)

1 Light-Second equals 161874.97732181425 Nautical Miles.

Light-Second to Fathom

1 ls = 163928509.40507436 ftm

1 Light-Second (ls) = 163928509.40507436 Fathoms (ftm)

1 Light-Second equals 163928509.40507436 fathoms.

Light-Second to Cable Length

1 ls = 1366070.911708953 cable

1 Light-Second (ls) = 1366070.911708953 Cable Lengths (cable)

1 Light-Second equals 1366070.911708953 Cable Length s.

Light-Second to Nautical League

1 ls = 53958.325773938086 NL

1 Light-Second (ls) = 53958.325773938086 Nautical Leagues (NL)

1 Light-Second equals 53958.325773938086 Nautical Leagues.

Light-Second to Thou

1 ls = 11802852677165.354 mil

1 Light-Second (ls) = 11802852677165.354 Thous (mil)

1 Light-Second equals 11802852677165.354 thous.

Light-Second to Rod

1 ls = 59610367.05639067 rd

1 Light-Second (ls) = 59610367.05639067 Rods (rd)

1 Light-Second equals 59610367.05639067 rods.

Light-Second to Chain

1 ls = 14902591.764097668 ch

1 Light-Second (ls) = 14902591.764097668 Chains (ch)

1 Light-Second equals 14902591.764097668 chains.

Light-Second to Furlong

1 ls = 1490259.176409767 fur

1 Light-Second (ls) = 1490259.176409767 Furlongs (fur)

1 Light-Second equals 1490259.176409767 furlongs.

Light-Second to Mile

1 ls = 186282.39705122088 mi

1 Light-Second (ls) = 186282.39705122088 Miles (mi)

1 Light-Second equals 186282.39705122088 miles.

Light-Second to League

1 ls = 62094.13235040695 lea

1 Light-Second (ls) = 62094.13235040695 Leagues (lea)

1 Light-Second equals 62094.13235040695 leagues.