centimeter | 1 cm | 2 cm | 3 cm | 4 cm | 5 cm | 6 cm | 7 cm | 8 cm | 9 cm | 10 cm | 11 cm | 12 cm | 13 cm | 14 cm | 15 cm | 16 cm | 17 cm | 18 cm | 19 cm | 20 cm | 21 cm | 22 cm | 23 cm | 24 cm | 25 cm | 26 cm | 27 cm | 28 cm | 29 cm | 30 cm | 31 cm | 32 cm | 33 cm | 34 cm | 35 cm | 36 cm | 37 cm | 38 cm | 39 cm | 40 cm | 41 cm | 42 cm | 43 cm | 44 cm | 45 cm | 46 cm | 47 cm | 48 cm | 49 cm | 50 cm | 51 cm | 52 cm | 53 cm | 54 cm | 55 cm | 56 cm | 57 cm | 58 cm | 59 cm | 60 cm | 61 cm | 62 cm | 63 cm | 64 cm | 65 cm | 66 cm | 67 cm | 68 cm | 69 cm | 70 cm | 71 cm | 72 cm | 73 cm | 74 cm | 75 cm | 76 cm | 77 cm | 78 cm | 79 cm | 80 cm | 81 cm | 82 cm | 83 cm | 84 cm | 85 cm | 86 cm | 87 cm | 88 cm | 89 cm | 90 cm | 91 cm | 92 cm | 93 cm | 94 cm | 95 cm | 96 cm | 97 cm | 98 cm | 99 cm | 100 cm |
light-year | 1.0570234105362 × 10-18 ly | 2.1140468210724 × 10-18 ly | 3.1710702316085 × 10-18 ly | 4.2280936421447 × 10-18 ly | 5.2851170526809 × 10-18 ly | 6.3421404632171 × 10-18 ly | 7.3991638737532 × 10-18 ly | 8.4561872842894 × 10-18 ly | 9.5132106948256 × 10-18 ly | 1.0570234105362 × 10-17 ly | 1.1627257515898 × 10-17 ly | 1.2684280926434 × 10-17 ly | 1.374130433697 × 10-17 ly | 1.4798327747506 × 10-17 ly | 1.5855351158043 × 10-17 ly | 1.6912374568579 × 10-17 ly | 1.7969397979115 × 10-17 ly | 1.9026421389651 × 10-17 ly | 2.0083444800187 × 10-17 ly | 2.1140468210724 × 10-17 ly | 2.219749162126 × 10-17 ly | 2.3254515031796 × 10-17 ly | 2.4311538442332 × 10-17 ly | 2.5368561852868 × 10-17 ly | 2.6425585263404 × 10-17 ly | 2.7482608673941 × 10-17 ly | 2.8539632084477 × 10-17 ly | 2.9596655495013 × 10-17 ly | 3.0653678905549 × 10-17 ly | 3.1710702316085 × 10-17 ly | 3.2767725726621 × 10-17 ly | 3.3824749137158 × 10-17 ly | 3.4881772547694 × 10-17 ly | 3.593879595823 × 10-17 ly | 3.6995819368766 × 10-17 ly | 3.8052842779302 × 10-17 ly | 3.9109866189839 × 10-17 ly | 4.0166889600375 × 10-17 ly | 4.1223913010911 × 10-17 ly | 4.2280936421447 × 10-17 ly | 4.3337959831983 × 10-17 ly | 4.4394983242519 × 10-17 ly | 4.5452006653056 × 10-17 ly | 4.6509030063592 × 10-17 ly | 4.7566053474128 × 10-17 ly | 4.8623076884664 × 10-17 ly | 4.96801002952 × 10-17 ly | 5.0737123705736 × 10-17 ly | 5.1794147116273 × 10-17 ly | 5.2851170526809 × 10-17 ly | 5.3908193937345 × 10-17 ly | 5.4965217347881 × 10-17 ly | 5.6022240758417 × 10-17 ly | 5.7079264168954 × 10-17 ly | 5.813628757949 × 10-17 ly | 5.9193310990026 × 10-17 ly | 6.0250334400562 × 10-17 ly | 6.1307357811098 × 10-17 ly | 6.2364381221634 × 10-17 ly | 6.3421404632171 × 10-17 ly | 6.4478428042707 × 10-17 ly | 6.5535451453243 × 10-17 ly | 6.6592474863779 × 10-17 ly | 6.7649498274315 × 10-17 ly | 6.8706521684851 × 10-17 ly | 6.9763545095388 × 10-17 ly | 7.0820568505924 × 10-17 ly | 7.187759191646 × 10-17 ly | 7.2934615326996 × 10-17 ly | 7.3991638737532 × 10-17 ly | 7.5048662148069 × 10-17 ly | 7.6105685558605 × 10-17 ly | 7.7162708969141 × 10-17 ly | 7.8219732379677 × 10-17 ly | 7.9276755790213 × 10-17 ly | 8.0333779200749 × 10-17 ly | 8.1390802611286 × 10-17 ly | 8.2447826021822 × 10-17 ly | 8.3504849432358 × 10-17 ly | 8.4561872842894 × 10-17 ly | 8.561889625343 × 10-17 ly | 8.6675919663967 × 10-17 ly | 8.7732943074503 × 10-17 ly | 8.8789966485039 × 10-17 ly | 8.9846989895575 × 10-17 ly | 9.0904013306111 × 10-17 ly | 9.1961036716647 × 10-17 ly | 9.3018060127184 × 10-17 ly | 9.407508353772 × 10-17 ly | 9.5132106948256 × 10-17 ly | 9.6189130358792 × 10-17 ly | 9.7246153769328 × 10-17 ly | 9.8303177179864 × 10-17 ly | 9.9360200590401 × 10-17 ly | 1.0041722400094 × 10-16 ly | 1.0147424741147 × 10-16 ly | 1.0253127082201 × 10-16 ly | 1.0358829423255 × 10-16 ly | 1.0464531764308 × 10-16 ly | 1.0570234105362 × 10-16 ly |
A centimetre (international spelling as used by the International Bureau of Weights and Measures; symbol cm) or centimeter (American spelling) is a unit of length in the metric system, equal to one hundredth of a metre, centi being the SI prefix for a factor of 1/100 . The centimetre was the base unit of length in the now deprecated centimetre–gram–second (CGS) system of units.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
centimeter | cm | ≡ 1×10-2 m ≡ 0.01 m | ≡ 1×10-2 m ≡ 0.01 m | Metric system SI |
centimeters | light-years | centimeters | light-years |
---|---|---|---|
1 | = 1.0570234105362E-18 | 4 | = 4.2280936421447E-18 |
1.5 | = 1.5855351158043E-18 | 4.5 | = 4.7566053474128E-18 |
2 | = 2.1140468210724E-18 | 5 | = 5.2851170526809E-18 |
2.5 | = 2.6425585263404E-18 | 5.5 | = 5.813628757949E-18 |
3 | = 3.1710702316085E-18 | 6 | = 6.3421404632171E-18 |
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 | centimeters | light-years | centimeters |
---|---|---|---|
1 | = 9.4605284048794E+17 | 4 | = 3.7842113619518E+18 |
1.5 | = 1.4190792607319E+18 | 4.5 | = 4.2572377821957E+18 |
2 | = 1.8921056809759E+18 | 5 | = 4.7302642024397E+18 |
2.5 | = 2.3651321012198E+18 | 5.5 | = 5.2032906226837E+18 |
3 | = 2.8381585214638E+18 | 6 | = 5.6763170429276E+18 |
centimeters | light-years |
---|---|
1 | = 1.0570234105362 × 10-18 |
9.4605284048794 × 1017 | = 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 …) |