barleycorn | 1 barleycorn | 2 barleycorn | 3 barleycorn | 4 barleycorn | 5 barleycorn | 6 barleycorn | 7 barleycorn | 8 barleycorn | 9 barleycorn | 10 barleycorn | 11 barleycorn | 12 barleycorn | 13 barleycorn | 14 barleycorn | 15 barleycorn | 16 barleycorn | 17 barleycorn | 18 barleycorn | 19 barleycorn | 20 barleycorn | 21 barleycorn | 22 barleycorn | 23 barleycorn | 24 barleycorn | 25 barleycorn | 26 barleycorn | 27 barleycorn | 28 barleycorn | 29 barleycorn | 30 barleycorn | 31 barleycorn | 32 barleycorn | 33 barleycorn | 34 barleycorn | 35 barleycorn | 36 barleycorn | 37 barleycorn | 38 barleycorn | 39 barleycorn | 40 barleycorn | 41 barleycorn | 42 barleycorn | 43 barleycorn | 44 barleycorn | 45 barleycorn | 46 barleycorn | 47 barleycorn | 48 barleycorn | 49 barleycorn | 50 barleycorn | 51 barleycorn | 52 barleycorn | 53 barleycorn | 54 barleycorn | 55 barleycorn | 56 barleycorn | 57 barleycorn | 58 barleycorn | 59 barleycorn | 60 barleycorn | 61 barleycorn | 62 barleycorn | 63 barleycorn | 64 barleycorn | 65 barleycorn | 66 barleycorn | 67 barleycorn | 68 barleycorn | 69 barleycorn | 70 barleycorn | 71 barleycorn | 72 barleycorn | 73 barleycorn | 74 barleycorn | 75 barleycorn | 76 barleycorn | 77 barleycorn | 78 barleycorn | 79 barleycorn | 80 barleycorn | 81 barleycorn | 82 barleycorn | 83 barleycorn | 84 barleycorn | 85 barleycorn | 86 barleycorn | 87 barleycorn | 88 barleycorn | 89 barleycorn | 90 barleycorn | 91 barleycorn | 92 barleycorn | 93 barleycorn | 94 barleycorn | 95 barleycorn | 96 barleycorn | 97 barleycorn | 98 barleycorn | 99 barleycorn | 100 barleycorn |
light-day | 3.2661484321486 × 10-16 ly | 6.5322968642971 × 10-16 ly | 9.7984452964457 × 10-16 ly | 1.3064593728594 × 10-15 ly | 1.6330742160743 × 10-15 ly | 1.9596890592891 × 10-15 ly | 2.286303902504 × 10-15 ly | 2.6129187457189 × 10-15 ly | 2.9395335889337 × 10-15 ly | 3.2661484321486 × 10-15 ly | 3.5927632753634 × 10-15 ly | 3.9193781185783 × 10-15 ly | 4.2459929617931 × 10-15 ly | 4.572607805008 × 10-15 ly | 4.8992226482229 × 10-15 ly | 5.2258374914377 × 10-15 ly | 5.5524523346526 × 10-15 ly | 5.8790671778674 × 10-15 ly | 6.2056820210823 × 10-15 ly | 6.5322968642971 × 10-15 ly | 6.858911707512 × 10-15 ly | 7.1855265507269 × 10-15 ly | 7.5121413939417 × 10-15 ly | 7.8387562371566 × 10-15 ly | 8.1653710803714 × 10-15 ly | 8.4919859235863 × 10-15 ly | 8.8186007668011 × 10-15 ly | 9.145215610016 × 10-15 ly | 9.4718304532309 × 10-15 ly | 9.7984452964457 × 10-15 ly | 1.0125060139661 × 10-14 ly | 1.0451674982875 × 10-14 ly | 1.077828982609 × 10-14 ly | 1.1104904669305 × 10-14 ly | 1.143151951252 × 10-14 ly | 1.1758134355735 × 10-14 ly | 1.208474919895 × 10-14 ly | 1.2411364042165 × 10-14 ly | 1.2737978885379 × 10-14 ly | 1.3064593728594 × 10-14 ly | 1.3391208571809 × 10-14 ly | 1.3717823415024 × 10-14 ly | 1.4044438258239 × 10-14 ly | 1.4371053101454 × 10-14 ly | 1.4697667944669 × 10-14 ly | 1.5024282787883 × 10-14 ly | 1.5350897631098 × 10-14 ly | 1.5677512474313 × 10-14 ly | 1.6004127317528 × 10-14 ly | 1.6330742160743 × 10-14 ly | 1.6657357003958 × 10-14 ly | 1.6983971847173 × 10-14 ly | 1.7310586690387 × 10-14 ly | 1.7637201533602 × 10-14 ly | 1.7963816376817 × 10-14 ly | 1.8290431220032 × 10-14 ly | 1.8617046063247 × 10-14 ly | 1.8943660906462 × 10-14 ly | 1.9270275749677 × 10-14 ly | 1.9596890592891 × 10-14 ly | 1.9923505436106 × 10-14 ly | 2.0250120279321 × 10-14 ly | 2.0576735122536 × 10-14 ly | 2.0903349965751 × 10-14 ly | 2.1229964808966 × 10-14 ly | 2.1556579652181 × 10-14 ly | 2.1883194495395 × 10-14 ly | 2.220980933861 × 10-14 ly | 2.2536424181825 × 10-14 ly | 2.286303902504 × 10-14 ly | 2.3189653868255 × 10-14 ly | 2.351626871147 × 10-14 ly | 2.3842883554685 × 10-14 ly | 2.4169498397899 × 10-14 ly | 2.4496113241114 × 10-14 ly | 2.4822728084329 × 10-14 ly | 2.5149342927544 × 10-14 ly | 2.5475957770759 × 10-14 ly | 2.5802572613974 × 10-14 ly | 2.6129187457189 × 10-14 ly | 2.6455802300403 × 10-14 ly | 2.6782417143618 × 10-14 ly | 2.7109031986833 × 10-14 ly | 2.7435646830048 × 10-14 ly | 2.7762261673263 × 10-14 ly | 2.8088876516478 × 10-14 ly | 2.8415491359693 × 10-14 ly | 2.8742106202907 × 10-14 ly | 2.9068721046122 × 10-14 ly | 2.9395335889337 × 10-14 ly | 2.9721950732552 × 10-14 ly | 3.0048565575767 × 10-14 ly | 3.0375180418982 × 10-14 ly | 3.0701795262197 × 10-14 ly | 3.1028410105411 × 10-14 ly | 3.1355024948626 × 10-14 ly | 3.1681639791841 × 10-14 ly | 3.2008254635056 × 10-14 ly | 3.2334869478271 × 10-14 ly | 3.2661484321486 × 10-14 ly |
The barleycorn is a small English unit of length equal to 1⁄3 of an inch (i.e., close to 0.8467 cm) still used in Great Britain and Ireland as a determiner of shoe sizes.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
barleycorn | = 1⁄3 in | ≈ 8.46×10−3 m | Imperial/US |
barleycorns | light-days | barleycorns | light-days |
---|---|---|---|
1 | ≈ 3.2661484321486E-16 | 4 | ≈ 1.3064593728594E-15 |
1.5 | ≈ 4.8992226482229E-16 | 4.5 | ≈ 1.4697667944669E-15 |
2 | ≈ 6.5322968642971E-16 | 5 | ≈ 1.6330742160743E-15 |
2.5 | ≈ 8.1653710803714E-16 | 5.5 | ≈ 1.7963816376817E-15 |
3 | ≈ 9.7984452964457E-16 | 6 | ≈ 1.9596890592891E-15 |
The light-day is a unit of length useful in astronomy, telecommunications and relativistic physics. It is defined as the distance that light travels in free space in oneday, and is equal to exactly 2.59020683712×1013 metres.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
light-day | ly | ≡ 24 light-hours | ≡ 2.59020683712×1013 m | Science - Astronomy (Length) |
light-days | barleycorns | light-days | barleycorns |
---|---|---|---|
1 | ≈ 3.0617102093617E+15 | 4 | ≈ 1.2246840837447E+16 |
1.5 | ≈ 4.5925653140426E+15 | 4.5 | ≈ 1.3777695942128E+16 |
2 | ≈ 6.1234204187234E+15 | 5 | ≈ 1.5308551046809E+16 |
2.5 | ≈ 7.6542755234043E+15 | 5.5 | ≈ 1.6839406151489E+16 |
3 | ≈ 9.1851306280851E+15 | 6 | ≈ 1.837026125617E+16 |
barleycorns | light-days |
---|---|
1 | ≈ 3.2661484321486 × 10-16 |
3.0617102093617 × 1015 | ≈ 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 …) |