earth radius | 1 R⊕ | 2 R⊕ | 3 R⊕ | 4 R⊕ | 5 R⊕ | 6 R⊕ | 7 R⊕ | 8 R⊕ | 9 R⊕ | 10 R⊕ | 11 R⊕ | 12 R⊕ | 13 R⊕ | 14 R⊕ | 15 R⊕ | 16 R⊕ | 17 R⊕ | 18 R⊕ | 19 R⊕ | 20 R⊕ | 21 R⊕ | 22 R⊕ | 23 R⊕ | 24 R⊕ | 25 R⊕ | 26 R⊕ | 27 R⊕ | 28 R⊕ | 29 R⊕ | 30 R⊕ | 31 R⊕ | 32 R⊕ | 33 R⊕ | 34 R⊕ | 35 R⊕ | 36 R⊕ | 37 R⊕ | 38 R⊕ | 39 R⊕ | 40 R⊕ | 41 R⊕ | 42 R⊕ | 43 R⊕ | 44 R⊕ | 45 R⊕ | 46 R⊕ | 47 R⊕ | 48 R⊕ | 49 R⊕ | 50 R⊕ | 51 R⊕ | 52 R⊕ | 53 R⊕ | 54 R⊕ | 55 R⊕ | 56 R⊕ | 57 R⊕ | 58 R⊕ | 59 R⊕ | 60 R⊕ | 61 R⊕ | 62 R⊕ | 63 R⊕ | 64 R⊕ | 65 R⊕ | 66 R⊕ | 67 R⊕ | 68 R⊕ | 69 R⊕ | 70 R⊕ | 71 R⊕ | 72 R⊕ | 73 R⊕ | 74 R⊕ | 75 R⊕ | 76 R⊕ | 77 R⊕ | 78 R⊕ | 79 R⊕ | 80 R⊕ | 81 R⊕ | 82 R⊕ | 83 R⊕ | 84 R⊕ | 85 R⊕ | 86 R⊕ | 87 R⊕ | 88 R⊕ | 89 R⊕ | 90 R⊕ | 91 R⊕ | 92 R⊕ | 93 R⊕ | 94 R⊕ | 95 R⊕ | 96 R⊕ | 97 R⊕ | 98 R⊕ | 99 R⊕ | 100 R⊕ |
ell | 5,573,928.2589676 ell | 11,147,856.517935 ell | 16,721,784.776903 ell | 22,295,713.035871 ell | 27,869,641.294838 ell | 33,443,569.553806 ell | 39,017,497.812773 ell | 44,591,426.071741 ell | 50,165,354.330709 ell | 55,739,282.589676 ell | 61,313,210.848644 ell | 66,887,139.107612 ell | 72,461,067.366579 ell | 78,034,995.625547 ell | 83,608,923.884514 ell | 89,182,852.143482 ell | 94,756,780.40245 ell | 100,330,708.66142 ell | 105,904,636.92038 ell | 111,478,565.17935 ell | 117,052,493.43832 ell | 122,626,421.69729 ell | 128,200,349.95626 ell | 133,774,278.21522 ell | 139,348,206.47419 ell | 144,922,134.73316 ell | 150,496,062.99213 ell | 156,069,991.25109 ell | 161,643,919.51006 ell | 167,217,847.76903 ell | 172,791,776.028 ell | 178,365,704.28696 ell | 183,939,632.54593 ell | 189,513,560.8049 ell | 195,087,489.06387 ell | 200,661,417.32283 ell | 206,235,345.5818 ell | 211,809,273.84077 ell | 217,383,202.09974 ell | 222,957,130.35871 ell | 228,531,058.61767 ell | 234,104,986.87664 ell | 239,678,915.13561 ell | 245,252,843.39458 ell | 250,826,771.65354 ell | 256,400,699.91251 ell | 261,974,628.17148 ell | 267,548,556.43045 ell | 273,122,484.68941 ell | 278,696,412.94838 ell | 284,270,341.20735 ell | 289,844,269.46632 ell | 295,418,197.72528 ell | 300,992,125.98425 ell | 306,566,054.24322 ell | 312,139,982.50219 ell | 317,713,910.76115 ell | 323,287,839.02012 ell | 328,861,767.27909 ell | 334,435,695.53806 ell | 340,009,623.79703 ell | 345,583,552.05599 ell | 351,157,480.31496 ell | 356,731,408.57393 ell | 362,305,336.8329 ell | 367,879,265.09186 ell | 373,453,193.35083 ell | 379,027,121.6098 ell | 384,601,049.86877 ell | 390,174,978.12773 ell | 395,748,906.3867 ell | 401,322,834.64567 ell | 406,896,762.90464 ell | 412,470,691.1636 ell | 418,044,619.42257 ell | 423,618,547.68154 ell | 429,192,475.94051 ell | 434,766,404.19948 ell | 440,340,332.45844 ell | 445,914,260.71741 ell | 451,488,188.97638 ell | 457,062,117.23535 ell | 462,636,045.49431 ell | 468,209,973.75328 ell | 473,783,902.01225 ell | 479,357,830.27122 ell | 484,931,758.53018 ell | 490,505,686.78915 ell | 496,079,615.04812 ell | 501,653,543.30709 ell | 507,227,471.56605 ell | 512,801,399.82502 ell | 518,375,328.08399 ell | 523,949,256.34296 ell | 529,523,184.60192 ell | 535,097,112.86089 ell | 540,671,041.11986 ell | 546,244,969.37883 ell | 551,818,897.6378 ell | 557,392,825.89676 ell |
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 | ell | earth radius | ell |
---|---|---|---|
1 | ≈ 5573928.2589676 | 4 | ≈ 22295713.035871 |
1.5 | ≈ 8360892.3884514 | 4.5 | ≈ 25082677.165354 |
2 | ≈ 11147856.517935 | 5 | ≈ 27869641.294838 |
2.5 | ≈ 13934820.647419 | 5.5 | ≈ 30656605.424322 |
3 | ≈ 16721784.776903 | 6 | ≈ 33443569.553806 |
An ell (from Proto-Germanic *alinō, cognate with Latin ulna) is a unit of measurement, originally a cubit, i.e., approximating the length of a man's arm from the elbow ("elbow" means the bend or bow of the ell or arm) to the tip of the middle finger, or about 18 inches (457 mm); in later usage, any of several longer units.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
ell | ell | ≡ 45 in (In England usually) | = 1.143 m | Other (Length) |
ell | earth radius | ell | earth radius |
---|---|---|---|
1 | ≈ 1.7940668654842E-7 | 4 | ≈ 7.1762674619369E-7 |
1.5 | ≈ 2.6911002982263E-7 | 4.5 | ≈ 8.073300894679E-7 |
2 | ≈ 3.5881337309685E-7 | 5 | ≈ 8.9703343274211E-7 |
2.5 | ≈ 4.4851671637106E-7 | 5.5 | ≈ 9.8673677601632E-7 |
3 | ≈ 5.3822005964527E-7 | 6 | ≈ 1.0764401192905E-6 |
earth radius | ell |
---|---|
1 | ≈ 5,573,928.2589676 |
1.7940668654842 × 10-7 | ≈ 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 …) |