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⊕ |
foot, metric (short) | 21,236,666.666667 smf | 42,473,333.333333 smf | 63 710 000 smf | 84,946,666.666667 smf | 106,183,333.33333 smf | 127 420 000 smf | 148,656,666.66667 smf | 169,893,333.33333 smf | 191 130 000 smf | 212,366,666.66667 smf | 233,603,333.33333 smf | 254 840 000 smf | 276,076,666.66667 smf | 297,313,333.33333 smf | 318 550 000 smf | 339,786,666.66667 smf | 361,023,333.33333 smf | 382 260 000 smf | 403,496,666.66667 smf | 424,733,333.33333 smf | 445 970 000 smf | 467,206,666.66667 smf | 488,443,333.33333 smf | 509 680 000 smf | 530,916,666.66667 smf | 552,153,333.33333 smf | 573 390 000 smf | 594,626,666.66667 smf | 615,863,333.33333 smf | 637 100 000 smf | 658,336,666.66667 smf | 679,573,333.33333 smf | 700 810 000 smf | 722,046,666.66667 smf | 743,283,333.33333 smf | 764 520 000 smf | 785,756,666.66667 smf | 806,993,333.33333 smf | 828 230 000 smf | 849,466,666.66667 smf | 870,703,333.33333 smf | 891 940 000 smf | 913,176,666.66667 smf | 934,413,333.33333 smf | 955 650 000 smf | 976,886,666.66667 smf | 998,123,333.33333 smf | 1 019 360 000 smf | 1,040,596,666.6667 smf | 1,061,833,333.3333 smf | 1 083 070 000 smf | 1,104,306,666.6667 smf | 1,125,543,333.3333 smf | 1 146 780 000 smf | 1,168,016,666.6667 smf | 1,189,253,333.3333 smf | 1 210 490 000 smf | 1,231,726,666.6667 smf | 1,252,963,333.3333 smf | 1 274 200 000 smf | 1,295,436,666.6667 smf | 1,316,673,333.3333 smf | 1 337 910 000 smf | 1,359,146,666.6667 smf | 1,380,383,333.3333 smf | 1 401 620 000 smf | 1,422,856,666.6667 smf | 1,444,093,333.3333 smf | 1 465 330 000 smf | 1,486,566,666.6667 smf | 1,507,803,333.3333 smf | 1 529 040 000 smf | 1,550,276,666.6667 smf | 1,571,513,333.3333 smf | 1 592 750 000 smf | 1,613,986,666.6667 smf | 1,635,223,333.3333 smf | 1 656 460 000 smf | 1,677,696,666.6667 smf | 1,698,933,333.3333 smf | 1 720 170 000 smf | 1,741,406,666.6667 smf | 1,762,643,333.3333 smf | 1 783 880 000 smf | 1,805,116,666.6667 smf | 1,826,353,333.3333 smf | 1 847 590 000 smf | 1,868,826,666.6667 smf | 1,890,063,333.3333 smf | 1 911 300 000 smf | 1,932,536,666.6667 smf | 1,953,773,333.3333 smf | 1 975 010 000 smf | 1,996,246,666.6667 smf | 2,017,483,333.3333 smf | 2 038 720 000 smf | 2,059,956,666.6667 smf | 2,081,193,333.3333 smf | 2 102 430 000 smf | 2,123,666,666.6667 smf |
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 | feet, metric (short) | earth radius | feet, metric (short) |
---|---|---|---|
1 | ≈ 21236666.666667 | 4 | ≈ 84946666.666667 |
1.5 | ≈ 31855000 | 4.5 | ≈ 95565000 |
2 | ≈ 42473333.333333 | 5 | ≈ 106183333.33333 |
2.5 | ≈ 53091666.666667 | 5.5 | ≈ 116801666.66667 |
3 | ≈ 63710000 | 6 | ≈ 127420000 |
≡ 0.30 m
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
foot, metric (short) | smf | ≡ 0.30 m | ≡ 0.30 m | Metric system SI |
feet, metric (short) | earth radius | feet, metric (short) | earth radius |
---|---|---|---|
1 | ≈ 4.7088369172814E-8 | 4 | ≈ 1.8835347669126E-7 |
1.5 | ≈ 7.0632553759221E-8 | 4.5 | ≈ 2.1189766127766E-7 |
2 | ≈ 9.4176738345629E-8 | 5 | ≈ 2.3544184586407E-7 |
2.5 | ≈ 1.1772092293204E-7 | 5.5 | ≈ 2.5898603045048E-7 |
3 | ≈ 1.4126510751844E-7 | 6 | ≈ 2.8253021503689E-7 |
earth radius | feet, metric (short) |
---|---|
1 | ≈ 21,236,666.666667 |
4.7088369172814 × 10-8 | ≈ 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 …) |