light-year
| Symbol: | ly |
| Category: | Length |
| SI Equivalent: | 9.46053×1015 m |
| Dimension: | L |
| Notes | |
| Unit used in astronomy and astrophysics. This is the distance light travels in the vacuum in a (tropical) year. | |
95 conversions, showing those commonly used | Show all
1 ly =
| Length | ||
| Symbol | Unit Name | |
| 9.46053×1025 | Å | angstrom |
| 6.32397×104 | AU, UA | astronomical unit |
| 9.46053×1033 | am | attometer |
| 9.46053×1017 | cm | centimeter |
| 3.10385×1016 | ft | foot |
| 9.46053×1013 | hm | hectometer |
| 3.72462×1017 | in | inch |
| 9.46053×1012 | km | kilometer |
| 9.46053×1015 | m | meter |
| 3.72462×1023 | µin | microinch |
| 9.46053×1021 | µm | micron |
| 3.72462×1020 | mil, thou | mil (thou) |
| 5.8785×1012 | mi (stat.) | mile (statute, land) |
| 9.46053×1018 | mm | millimeter |
| 9.46053×1024 | nm | nanometer |
| 5.10828×1012 | mi (int. naut.) | nautical mile (international) |
| 0.306595 | pc | parsec |
| 9.46053×1027 | pm | picometer |
| 1.03462×1016 | yd | yard |
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