light-hour | 1 light-hour | 2 light-hour | 3 light-hour | 4 light-hour | 5 light-hour | 6 light-hour | 7 light-hour | 8 light-hour | 9 light-hour | 10 light-hour | 11 light-hour | 12 light-hour | 13 light-hour | 14 light-hour | 15 light-hour | 16 light-hour | 17 light-hour | 18 light-hour | 19 light-hour | 20 light-hour | 21 light-hour | 22 light-hour | 23 light-hour | 24 light-hour | 25 light-hour | 26 light-hour | 27 light-hour | 28 light-hour | 29 light-hour | 30 light-hour | 31 light-hour | 32 light-hour | 33 light-hour | 34 light-hour | 35 light-hour | 36 light-hour | 37 light-hour | 38 light-hour | 39 light-hour | 40 light-hour | 41 light-hour | 42 light-hour | 43 light-hour | 44 light-hour | 45 light-hour | 46 light-hour | 47 light-hour | 48 light-hour | 49 light-hour | 50 light-hour | 51 light-hour | 52 light-hour | 53 light-hour | 54 light-hour | 55 light-hour | 56 light-hour | 57 light-hour | 58 light-hour | 59 light-hour | 60 light-hour | 61 light-hour | 62 light-hour | 63 light-hour | 64 light-hour | 65 light-hour | 66 light-hour | 67 light-hour | 68 light-hour | 69 light-hour | 70 light-hour | 71 light-hour | 72 light-hour | 73 light-hour | 74 light-hour | 75 light-hour | 76 light-hour | 77 light-hour | 78 light-hour | 79 light-hour | 80 light-hour | 81 light-hour | 82 light-hour | 83 light-hour | 84 light-hour | 85 light-hour | 86 light-hour | 87 light-hour | 88 light-hour | 89 light-hour | 90 light-hour | 91 light-hour | 92 light-hour | 93 light-hour | 94 light-hour | 95 light-hour | 96 light-hour | 97 light-hour | 98 light-hour | 99 light-hour | 100 light-hour |
inch | 42 490 269 637 795 in | 84 980 539 275 591 in | 1.2747080891339 × 1014 in | 1.6996107855118 × 1014 in | 2.1245134818898 × 1014 in | 2.5494161782677 × 1014 in | 2.9743188746457 × 1014 in | 3.3992215710236 × 1014 in | 3.8241242674016 × 1014 in | 4.2490269637795 × 1014 in | 4.6739296601575 × 1014 in | 5.0988323565354 × 1014 in | 5.5237350529134 × 1014 in | 5.9486377492913 × 1014 in | 6.3735404456693 × 1014 in | 6.7984431420472 × 1014 in | 7.2233458384252 × 1014 in | 7.6482485348032 × 1014 in | 8.0731512311811 × 1014 in | 8.4980539275591 × 1014 in | 8.922956623937 × 1014 in | 9.347859320315 × 1014 in | 9.7727620166929 × 1014 in | 1.0197664713071 × 1015 in | 1.0622567409449 × 1015 in | 1.1047470105827 × 1015 in | 1.1472372802205 × 1015 in | 1.1897275498583 × 1015 in | 1.2322178194961 × 1015 in | 1.2747080891339 × 1015 in | 1.3171983587717 × 1015 in | 1.3596886284094 × 1015 in | 1.4021788980472 × 1015 in | 1.444669167685 × 1015 in | 1.4871594373228 × 1015 in | 1.5296497069606 × 1015 in | 1.5721399765984 × 1015 in | 1.6146302462362 × 1015 in | 1.657120515874 × 1015 in | 1.6996107855118 × 1015 in | 1.7421010551496 × 1015 in | 1.7845913247874 × 1015 in | 1.8270815944252 × 1015 in | 1.869571864063 × 1015 in | 1.9120621337008 × 1015 in | 1.9545524033386 × 1015 in | 1.9970426729764 × 1015 in | 2.0395329426142 × 1015 in | 2.082023212252 × 1015 in | 2.1245134818898 × 1015 in | 2.1670037515276 × 1015 in | 2.2094940211654 × 1015 in | 2.2519842908031 × 1015 in | 2.2944745604409 × 1015 in | 2.3369648300787 × 1015 in | 2.3794550997165 × 1015 in | 2.4219453693543 × 1015 in | 2.4644356389921 × 1015 in | 2.5069259086299 × 1015 in | 2.5494161782677 × 1015 in | 2.5919064479055 × 1015 in | 2.6343967175433 × 1015 in | 2.6768869871811 × 1015 in | 2.7193772568189 × 1015 in | 2.7618675264567 × 1015 in | 2.8043577960945 × 1015 in | 2.8468480657323 × 1015 in | 2.8893383353701 × 1015 in | 2.9318286050079 × 1015 in | 2.9743188746457 × 1015 in | 3.0168091442835 × 1015 in | 3.0592994139213 × 1015 in | 3.1017896835591 × 1015 in | 3.1442799531969 × 1015 in | 3.1867702228346 × 1015 in | 3.2292604924724 × 1015 in | 3.2717507621102 × 1015 in | 3.314241031748 × 1015 in | 3.3567313013858 × 1015 in | 3.3992215710236 × 1015 in | 3.4417118406614 × 1015 in | 3.4842021102992 × 1015 in | 3.526692379937 × 1015 in | 3.5691826495748 × 1015 in | 3.6116729192126 × 1015 in | 3.6541631888504 × 1015 in | 3.6966534584882 × 1015 in | 3.739143728126 × 1015 in | 3.7816339977638 × 1015 in | 3.8241242674016 × 1015 in | 3.8666145370394 × 1015 in | 3.9091048066772 × 1015 in | 3.951595076315 × 1015 in | 3.9940853459528 × 1015 in | 4.0365756155906 × 1015 in | 4.0790658852283 × 1015 in | 4.1215561548661 × 1015 in | 4.1640464245039 × 1015 in | 4.2065366941417 × 1015 in | 4.2490269637795 × 1015 in |
The light-hour 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 onehour, and is equal to exactly 1.0792528488×1012 metres.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
light-hour | ≡ 60 light-minutes | ≡ 1.0792528488×1012 m | Science - Astronomy (Length) |
light-hours | inches | light-hours | inches |
---|---|---|---|
1 | ≡ 42490269637795 | 4 | ≡ 1.6996107855118E+14 |
1.5 | ≡ 63735404456693 | 4.5 | ≡ 1.9120621337008E+14 |
2 | ≡ 84980539275591 | 5 | ≡ 2.1245134818898E+14 |
2.5 | ≡ 1.0622567409449E+14 | 5.5 | ≡ 2.3369648300787E+14 |
3 | ≡ 1.2747080891339E+14 | 6 | ≡ 2.5494161782677E+14 |
The inch (abbreviation: in or ″) is a unit of length in the (British) imperial and United States customary systems of measurement now formally equal to 1⁄36 yard but usually understood as 1⁄12 of a foot. Derived from the Roman uncia ("twelfth"), inch is also sometimes used to translate related units in other measurement systems, usually understood as deriving from the width of the human thumb.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
inch | in | ≡ 2.54 cm ≡ 1⁄36 yd ≡ 1⁄12 ft | ≡ 0.0254 m | Imperial/US |
inches | light-hours | inches | light-hours |
---|---|---|---|
1 | ≡ 2.3534800050092E-14 | 4 | ≡ 9.4139200200367E-14 |
1.5 | ≡ 3.5302200075138E-14 | 4.5 | ≡ 1.0590660022541E-13 |
2 | ≡ 4.7069600100184E-14 | 5 | ≡ 1.1767400025046E-13 |
2.5 | ≡ 5.883700012523E-14 | 5.5 | ≡ 1.2944140027551E-13 |
3 | ≡ 7.0604400150276E-14 | 6 | ≡ 1.4120880030055E-13 |
light-hours | inches |
---|---|
1 | ≡ 42 490 269 637 795 |
2.3534800050092 × 10-14 | ≡ 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 …) |