line | 1 ln | 2 ln | 3 ln | 4 ln | 5 ln | 6 ln | 7 ln | 8 ln | 9 ln | 10 ln | 11 ln | 12 ln | 13 ln | 14 ln | 15 ln | 16 ln | 17 ln | 18 ln | 19 ln | 20 ln | 21 ln | 22 ln | 23 ln | 24 ln | 25 ln | 26 ln | 27 ln | 28 ln | 29 ln | 30 ln | 31 ln | 32 ln | 33 ln | 34 ln | 35 ln | 36 ln | 37 ln | 38 ln | 39 ln | 40 ln | 41 ln | 42 ln | 43 ln | 44 ln | 45 ln | 46 ln | 47 ln | 48 ln | 49 ln | 50 ln | 51 ln | 52 ln | 53 ln | 54 ln | 55 ln | 56 ln | 57 ln | 58 ln | 59 ln | 60 ln | 61 ln | 62 ln | 63 ln | 64 ln | 65 ln | 66 ln | 67 ln | 68 ln | 69 ln | 70 ln | 71 ln | 72 ln | 73 ln | 74 ln | 75 ln | 76 ln | 77 ln | 78 ln | 79 ln | 80 ln | 81 ln | 82 ln | 83 ln | 84 ln | 85 ln | 86 ln | 87 ln | 88 ln | 89 ln | 90 ln | 91 ln | 92 ln | 93 ln | 94 ln | 95 ln | 96 ln | 97 ln | 98 ln | 99 ln | 100 ln |
earth radius | 3.322346047193 × 10-10R⊕ | 6.644692094386 × 10-10R⊕ | 9.967038141579 × 10-10R⊕ | 1.3289384188772 × 10-9R⊕ | 1.6611730235965 × 10-9R⊕ | 1.9934076283158 × 10-9R⊕ | 2.3256422330351 × 10-9R⊕ | 2.6578768377544 × 10-9R⊕ | 2.9901114424737 × 10-9R⊕ | 3.322346047193 × 10-9R⊕ | 3.6545806519123 × 10-9R⊕ | 3.9868152566316 × 10-9R⊕ | 4.3190498613509 × 10-9R⊕ | 4.6512844660702 × 10-9R⊕ | 4.9835190707895 × 10-9R⊕ | 5.3157536755088 × 10-9R⊕ | 5.6479882802281 × 10-9R⊕ | 5.9802228849474 × 10-9R⊕ | 6.3124574896667 × 10-9R⊕ | 6.644692094386 × 10-9R⊕ | 6.9769266991053 × 10-9R⊕ | 7.3091613038246 × 10-9R⊕ | 7.6413959085439 × 10-9R⊕ | 7.9736305132632 × 10-9R⊕ | 8.3058651179825 × 10-9R⊕ | 8.6380997227018 × 10-9R⊕ | 8.9703343274211 × 10-9R⊕ | 9.3025689321404 × 10-9R⊕ | 9.6348035368597 × 10-9R⊕ | 9.967038141579 × 10-9R⊕ | 1.0299272746298 × 10-8R⊕ | 1.0631507351018 × 10-8R⊕ | 1.0963741955737 × 10-8R⊕ | 1.1295976560456 × 10-8R⊕ | 1.1628211165176 × 10-8R⊕ | 1.1960445769895 × 10-8R⊕ | 1.2292680374614 × 10-8R⊕ | 1.2624914979333 × 10-8R⊕ | 1.2957149584053 × 10-8R⊕ | 1.3289384188772 × 10-8R⊕ | 1.3621618793491 × 10-8R⊕ | 1.3953853398211 × 10-8R⊕ | 1.428608800293 × 10-8R⊕ | 1.4618322607649 × 10-8R⊕ | 1.4950557212369 × 10-8R⊕ | 1.5282791817088 × 10-8R⊕ | 1.5615026421807 × 10-8R⊕ | 1.5947261026526 × 10-8R⊕ | 1.6279495631246 × 10-8R⊕ | 1.6611730235965 × 10-8R⊕ | 1.6943964840684 × 10-8R⊕ | 1.7276199445404 × 10-8R⊕ | 1.7608434050123 × 10-8R⊕ | 1.7940668654842 × 10-8R⊕ | 1.8272903259562 × 10-8R⊕ | 1.8605137864281 × 10-8R⊕ | 1.8937372469 × 10-8R⊕ | 1.9269607073719 × 10-8R⊕ | 1.9601841678439 × 10-8R⊕ | 1.9934076283158 × 10-8R⊕ | 2.0266310887877 × 10-8R⊕ | 2.0598545492597 × 10-8R⊕ | 2.0930780097316 × 10-8R⊕ | 2.1263014702035 × 10-8R⊕ | 2.1595249306755 × 10-8R⊕ | 2.1927483911474 × 10-8R⊕ | 2.2259718516193 × 10-8R⊕ | 2.2591953120912 × 10-8R⊕ | 2.2924187725632 × 10-8R⊕ | 2.3256422330351 × 10-8R⊕ | 2.358865693507 × 10-8R⊕ | 2.392089153979 × 10-8R⊕ | 2.4253126144509 × 10-8R⊕ | 2.4585360749228 × 10-8R⊕ | 2.4917595353948 × 10-8R⊕ | 2.5249829958667 × 10-8R⊕ | 2.5582064563386 × 10-8R⊕ | 2.5914299168105 × 10-8R⊕ | 2.6246533772825 × 10-8R⊕ | 2.6578768377544 × 10-8R⊕ | 2.6911002982263 × 10-8R⊕ | 2.7243237586983 × 10-8R⊕ | 2.7575472191702 × 10-8R⊕ | 2.7907706796421 × 10-8R⊕ | 2.8239941401141 × 10-8R⊕ | 2.857217600586 × 10-8R⊕ | 2.8904410610579 × 10-8R⊕ | 2.9236645215298 × 10-8R⊕ | 2.9568879820018 × 10-8R⊕ | 2.9901114424737 × 10-8R⊕ | 3.0233349029456 × 10-8R⊕ | 3.0565583634176 × 10-8R⊕ | 3.0897818238895 × 10-8R⊕ | 3.1230052843614 × 10-8R⊕ | 3.1562287448334 × 10-8R⊕ | 3.1894522053053 × 10-8R⊕ | 3.2226756657772 × 10-8R⊕ | 3.2558991262491 × 10-8R⊕ | 3.2891225867211 × 10-8R⊕ | 3.322346047193 × 10-8R⊕ |
The line (abbreviated L or l) was a small English unit of length, variously reckoned as 1⁄10, 1⁄12, 1⁄16, or 1⁄40 of an inch. It was not included among the units authorized as the British Imperial system in 1824.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
line | ln | ≡ 1⁄12 in | = 0.002116 m | Imperial/US |
lines | earth radius | lines | earth radius |
---|---|---|---|
1 | ≈ 3.322346047193E-10 | 4 | ≈ 1.3289384188772E-9 |
1.5 | ≈ 4.9835190707895E-10 | 4.5 | ≈ 1.4950557212369E-9 |
2 | ≈ 6.644692094386E-10 | 5 | ≈ 1.6611730235965E-9 |
2.5 | ≈ 8.3058651179825E-10 | 5.5 | ≈ 1.8272903259562E-9 |
3 | ≈ 9.967038141579E-10 | 6 | ≈ 1.9934076283158E-9 |
Earth radius is the distance from Earth's center to its surface, about 6,371 km (3,959 mi). This length is also used as a unit of distance, especially in astronomy and geology, where it is usually denoted by R⊕.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
earth radius | R⊕ | ≈ 6,371 km | ≈ 6,371 km | Science - Astronomy (Length) |
earth radius | lines | earth radius | lines |
---|---|---|---|
1 | ≈ 3009921259.8425 | 4 | ≈ 12039685039.37 |
1.5 | ≈ 4514881889.7638 | 4.5 | ≈ 13544645669.291 |
2 | ≈ 6019842519.685 | 5 | ≈ 15049606299.213 |
2.5 | ≈ 7524803149.6063 | 5.5 | ≈ 16554566929.134 |
3 | ≈ 9029763779.5276 | 6 | ≈ 18059527559.055 |
lines | earth radius |
---|---|
1 | ≈ 3.322346047193 × 10-10 |
3,009,921,259.8425 | ≈ 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 …) |