light-year | 1 ly | 2 ly | 3 ly | 4 ly | 5 ly | 6 ly | 7 ly | 8 ly | 9 ly | 10 ly | 11 ly | 12 ly | 13 ly | 14 ly | 15 ly | 16 ly | 17 ly | 18 ly | 19 ly | 20 ly | 21 ly | 22 ly | 23 ly | 24 ly | 25 ly | 26 ly | 27 ly | 28 ly | 29 ly | 30 ly | 31 ly | 32 ly | 33 ly | 34 ly | 35 ly | 36 ly | 37 ly | 38 ly | 39 ly | 40 ly | 41 ly | 42 ly | 43 ly | 44 ly | 45 ly | 46 ly | 47 ly | 48 ly | 49 ly | 50 ly | 51 ly | 52 ly | 53 ly | 54 ly | 55 ly | 56 ly | 57 ly | 58 ly | 59 ly | 60 ly | 61 ly | 62 ly | 63 ly | 64 ly | 65 ly | 66 ly | 67 ly | 68 ly | 69 ly | 70 ly | 71 ly | 72 ly | 73 ly | 74 ly | 75 ly | 76 ly | 77 ly | 78 ly | 79 ly | 80 ly | 81 ly | 82 ly | 83 ly | 84 ly | 85 ly | 86 ly | 87 ly | 88 ly | 89 ly | 90 ly | 91 ly | 92 ly | 93 ly | 94 ly | 95 ly | 96 ly | 97 ly | 98 ly | 99 ly | 100 ly |
zettameter | 9.4605284048794 × 10-6 Zm | 1.8921056809759 × 10-5 Zm | 2.8381585214638 × 10-5 Zm | 3.7842113619518 × 10-5 Zm | 4.7302642024397 × 10-5 Zm | 5.6763170429276 × 10-5 Zm | 6.6223698834156 × 10-5 Zm | 7.5684227239035 × 10-5 Zm | 8.5144755643915 × 10-5 Zm | 9.4605284048794 × 10-5 Zm | 0.0001041 Zm | 0.0001135 Zm | 0.0001230 Zm | 0.0001324 Zm | 0.0001419 Zm | 0.0001514 Zm | 0.0001608 Zm | 0.0001703 Zm | 0.0001798 Zm | 0.0001892 Zm | 0.0001987 Zm | 0.0002081 Zm | 0.0002176 Zm | 0.0002271 Zm | 0.0002365 Zm | 0.0002460 Zm | 0.0002554 Zm | 0.0002649 Zm | 0.0002744 Zm | 0.0002838 Zm | 0.0002933 Zm | 0.0003027 Zm | 0.0003122 Zm | 0.0003217 Zm | 0.0003311 Zm | 0.0003406 Zm | 0.0003500 Zm | 0.0003595 Zm | 0.0003690 Zm | 0.0003784 Zm | 0.0003879 Zm | 0.0003973 Zm | 0.0004068 Zm | 0.0004163 Zm | 0.0004257 Zm | 0.0004352 Zm | 0.0004446 Zm | 0.0004541 Zm | 0.0004636 Zm | 0.0004730 Zm | 0.0004825 Zm | 0.0004919 Zm | 0.0005014 Zm | 0.0005109 Zm | 0.0005203 Zm | 0.0005298 Zm | 0.0005393 Zm | 0.0005487 Zm | 0.0005582 Zm | 0.0005676 Zm | 0.0005771 Zm | 0.0005866 Zm | 0.0005960 Zm | 0.0006055 Zm | 0.0006149 Zm | 0.0006244 Zm | 0.0006339 Zm | 0.0006433 Zm | 0.0006528 Zm | 0.0006622 Zm | 0.0006717 Zm | 0.0006812 Zm | 0.0006906 Zm | 0.0007001 Zm | 0.0007095 Zm | 0.0007190 Zm | 0.0007285 Zm | 0.0007379 Zm | 0.0007474 Zm | 0.0007568 Zm | 0.0007663 Zm | 0.0007758 Zm | 0.0007852 Zm | 0.0007947 Zm | 0.0008041 Zm | 0.0008136 Zm | 0.0008231 Zm | 0.0008325 Zm | 0.0008420 Zm | 0.0008514 Zm | 0.0008609 Zm | 0.0008704 Zm | 0.0008798 Zm | 0.0008893 Zm | 0.0008988 Zm | 0.0009082 Zm | 0.0009177 Zm | 0.0009271 Zm | 0.0009366 Zm | 0.0009461 Zm |
The light-year is a unit of length used to express astronomical distances. It is about 9.5 quadrillion metres or 5.9 trillion miles. As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in vacuum in one Julian year (365.25 days). Because it includes the word "year", the term light-year is sometimes misinterpreted as a unit of time.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
light-year | ly | ≡ Distance light travels in vacuum in 365.25 days | = 9.4607304725808×1015 m | Science - Astronomy (Length) |
light-years | zettameters | light-years | zettameters |
---|---|---|---|
1 | = 9.4605284048794E-6 | 4 | = 3.7842113619518E-5 |
1.5 | = 1.4190792607319E-5 | 4.5 | = 4.2572377821957E-5 |
2 | = 1.8921056809759E-5 | 5 | = 4.7302642024397E-5 |
2.5 | = 2.3651321012199E-5 | 5.5 | = 5.2032906226837E-5 |
3 | = 2.8381585214638E-5 | 6 | = 5.6763170429276E-5 |
Zettameter is an SI device for measuring distance. It is equal to 1021 meters. The symbol for zettameter is Zm.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
zettameter | Zm | ≡ 1×1021 m | ≡ 1×1021 m | Metric system SI |
zettameters | light-years | zettameters | light-years |
---|---|---|---|
1 | = 105702.34105362 | 4 | = 422809.36421447 |
1.5 | = 158553.51158043 | 4.5 | = 475660.53474128 |
2 | = 211404.68210724 | 5 | = 528511.70526809 |
2.5 | = 264255.85263404 | 5.5 | = 581362.8757949 |
3 | = 317107.02316085 | 6 | = 634214.04632171 |
light-years | zettameters |
---|---|
1 | = 9.4605284048794 × 10-6 |
105,702.3410536 | = 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |