21 Kilometers to Light Years

Convert 21 kilometers (km) to light years (ly) with formulas and conversion tables.

km
ly
21 kilometers (km) = 2.21970175145e-12 light years (ly)
Round to:
Step-by-Step Solution
1Write the conversion factor:
1 light year = 9.46073047258e12 kilometers
2Divide the value by the conversion factor:
21 ÷ 9.46073047258e12 = 2.21970175145e-12
3Result:
21 kilometers (km) = 2.21970175145e-12 light years (ly)
↔ Light Years to Kilometers

Kilometers to Light Years Conversion Table

KilometersLight Years
1 km1.057e-13 ly
2 km2.114e-13 ly
5 km5.285e-13 ly
10 km1.057e-12 ly
20 km2.114e-12 ly
21 km2.2197e-12 ly
50 km5.285e-12 ly
100 km1.057e-11 ly

21 Kilometers in Other Units

Unit21 km =
Kilometers to Meters21000 m
Kilometers to Astronomical Units1.40376329568e-7 AU
Kilometers to Light Years2.21970175145e-12 ly
Kilometers to Parsecs6.80563650783e-13 pc
Kilometers to Kiloparsecs6.80563650783e-16 kpc
Kilometers to Megaparsecs6.80563650783e-19 Mpc
Kilometers to Light Seconds7.00484599916e-5 ls
Kilometers to Light Minutes1.16747433319e-6 lm
Kilometers to Miles13.048795037 mi

Related Conversions

5 km to ly10 km to ly20 km to ly2.2e-12 ly to kmLight Years to Kilometers ConverterKilometers to Light Years Converter