| 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 |
| decimeter | 9.4605284048794 × 1016 dm | 1.8921056809759 × 1017 dm | 2.8381585214638 × 1017 dm | 3.7842113619518 × 1017 dm | 4.7302642024397 × 1017 dm | 5.6763170429276 × 1017 dm | 6.6223698834156 × 1017 dm | 7.5684227239035 × 1017 dm | 8.5144755643915 × 1017 dm | 9.4605284048794 × 1017 dm | 1.0406581245367 × 1018 dm | 1.1352634085855 × 1018 dm | 1.2298686926343 × 1018 dm | 1.3244739766831 × 1018 dm | 1.4190792607319 × 1018 dm | 1.5136845447807 × 1018 dm | 1.6082898288295 × 1018 dm | 1.7028951128783 × 1018 dm | 1.7975003969271 × 1018 dm | 1.8921056809759 × 1018 dm | 1.9867109650247 × 1018 dm | 2.0813162490735 × 1018 dm | 2.1759215331223 × 1018 dm | 2.2705268171711 × 1018 dm | 2.3651321012198 × 1018 dm | 2.4597373852686 × 1018 dm | 2.5543426693174 × 1018 dm | 2.6489479533662 × 1018 dm | 2.743553237415 × 1018 dm | 2.8381585214638 × 1018 dm | 2.9327638055126 × 1018 dm | 3.0273690895614 × 1018 dm | 3.1219743736102 × 1018 dm | 3.216579657659 × 1018 dm | 3.3111849417078 × 1018 dm | 3.4057902257566 × 1018 dm | 3.5003955098054 × 1018 dm | 3.5950007938542 × 1018 dm | 3.689606077903 × 1018 dm | 3.7842113619518 × 1018 dm | 3.8788166460006 × 1018 dm | 3.9734219300493 × 1018 dm | 4.0680272140981 × 1018 dm | 4.1626324981469 × 1018 dm | 4.2572377821957 × 1018 dm | 4.3518430662445 × 1018 dm | 4.4464483502933 × 1018 dm | 4.5410536343421 × 1018 dm | 4.6356589183909 × 1018 dm | 4.7302642024397 × 1018 dm | 4.8248694864885 × 1018 dm | 4.9194747705373 × 1018 dm | 5.0140800545861 × 1018 dm | 5.1086853386349 × 1018 dm | 5.2032906226837 × 1018 dm | 5.2978959067325 × 1018 dm | 5.3925011907813 × 1018 dm | 5.4871064748301 × 1018 dm | 5.5817117588788 × 1018 dm | 5.6763170429276 × 1018 dm | 5.7709223269764 × 1018 dm | 5.8655276110252 × 1018 dm | 5.960132895074 × 1018 dm | 6.0547381791228 × 1018 dm | 6.1493434631716 × 1018 dm | 6.2439487472204 × 1018 dm | 6.3385540312692 × 1018 dm | 6.433159315318 × 1018 dm | 6.5277645993668 × 1018 dm | 6.6223698834156 × 1018 dm | 6.7169751674644 × 1018 dm | 6.8115804515132 × 1018 dm | 6.906185735562 × 1018 dm | 7.0007910196108 × 1018 dm | 7.0953963036595 × 1018 dm | 7.1900015877083 × 1018 dm | 7.2846068717571 × 1018 dm | 7.3792121558059 × 1018 dm | 7.4738174398547 × 1018 dm | 7.5684227239035 × 1018 dm | 7.6630280079523 × 1018 dm | 7.7576332920011 × 1018 dm | 7.8522385760499 × 1018 dm | 7.9468438600987 × 1018 dm | 8.0414491441475 × 1018 dm | 8.1360544281963 × 1018 dm | 8.2306597122451 × 1018 dm | 8.3252649962939 × 1018 dm | 8.4198702803427 × 1018 dm | 8.5144755643915 × 1018 dm | 8.6090808484403 × 1018 dm | 8.703686132489 × 1018 dm | 8.7982914165378 × 1018 dm | 8.8928967005866 × 1018 dm | 8.9875019846354 × 1018 dm | 9.0821072686842 × 1018 dm | 9.176712552733 × 1018 dm | 9.2713178367818 × 1018 dm | 9.3659231208306 × 1018 dm | 9.4605284048794 × 1018 dm |
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.
| 1 light-years = 9.4605284048794E+16 decimeters | 4 light-years = 3.7842113619518E+17 decimeters |
| 1.5 light-years = 1.4190792607319E+17 decimeters | 4.5 light-years = 4.2572377821957E+17 decimeters |
| 2 light-years = 1.8921056809759E+17 decimeters | 5 light-years = 4.7302642024397E+17 decimeters |
| 2.5 light-years = 2.3651321012198E+17 decimeters | 5.5 light-years = 5.2032906226837E+17 decimeters |
| 3 light-years = 2.8381585214638E+17 decimeters | 6 light-years = 5.6763170429276E+17 decimeters |
Decimeter or decimetre is equal to 10-1 meter (unit of length), comes from a combination of the metric prefix deci (d) and the SI unit of length meter (m). Plural name is decimeters.
| 1 decimeters = 1.0570234105362E-17 light-years | 4 decimeters = 4.2280936421447E-17 light-years |
| 1.5 decimeters = 1.5855351158043E-17 light-years | 4.5 decimeters = 4.7566053474128E-17 light-years |
| 2 decimeters = 2.1140468210724E-17 light-years | 5 decimeters = 5.2851170526809E-17 light-years |
| 2.5 decimeters = 2.6425585263404E-17 light-years | 5.5 decimeters = 5.813628757949E-17 light-years |
| 3 decimeters = 3.1710702316085E-17 light-years | 6 decimeters = 6.3421404632171E-17 light-years |
| 1 light-years = 9.4605284048794 × 1016 decimeters |
| 1 decimeters = 1.0570234105362 × 10-17 light-years |