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⊕ |
cubit | 12 742 000 cubit | 25 484 000 cubit | 38 226 000 cubit | 50 968 000 cubit | 63 710 000 cubit | 76 452 000 cubit | 89 194 000 cubit | 101 936 000 cubit | 114 678 000 cubit | 127 420 000 cubit | 140 162 000 cubit | 152 904 000 cubit | 165 646 000 cubit | 178 388 000 cubit | 191 130 000 cubit | 203 872 000 cubit | 216 614 000 cubit | 229 356 000 cubit | 242 098 000 cubit | 254 840 000 cubit | 267 582 000 cubit | 280 324 000 cubit | 293 066 000 cubit | 305 808 000 cubit | 318 550 000 cubit | 331 292 000 cubit | 344 034 000 cubit | 356 776 000 cubit | 369 518 000 cubit | 382 260 000 cubit | 395 002 000 cubit | 407 744 000 cubit | 420 486 000 cubit | 433 228 000 cubit | 445 970 000 cubit | 458 712 000 cubit | 471 454 000 cubit | 484 196 000 cubit | 496 938 000 cubit | 509 680 000 cubit | 522 422 000 cubit | 535 164 000 cubit | 547 906 000 cubit | 560 648 000 cubit | 573 390 000 cubit | 586 132 000 cubit | 598 874 000 cubit | 611 616 000 cubit | 624 358 000 cubit | 637 100 000 cubit | 649 842 000 cubit | 662 584 000 cubit | 675 326 000 cubit | 688 068 000 cubit | 700 810 000 cubit | 713 552 000 cubit | 726 294 000 cubit | 739 036 000 cubit | 751 778 000 cubit | 764 520 000 cubit | 777 262 000 cubit | 790 004 000 cubit | 802 746 000 cubit | 815 488 000 cubit | 828 230 000 cubit | 840 972 000 cubit | 853 714 000 cubit | 866 456 000 cubit | 879 198 000 cubit | 891 940 000 cubit | 904 682 000 cubit | 917 424 000 cubit | 930 166 000 cubit | 942 908 000 cubit | 955 650 000 cubit | 968 392 000 cubit | 981 134 000 cubit | 993 876 000 cubit | 1 006 618 000 cubit | 1 019 360 000 cubit | 1 032 102 000 cubit | 1 044 844 000 cubit | 1 057 586 000 cubit | 1 070 328 000 cubit | 1 083 070 000 cubit | 1 095 812 000 cubit | 1 108 554 000 cubit | 1 121 296 000 cubit | 1 134 038 000 cubit | 1 146 780 000 cubit | 1 159 522 000 cubit | 1 172 264 000 cubit | 1 185 006 000 cubit | 1 197 748 000 cubit | 1 210 490 000 cubit | 1 223 232 000 cubit | 1 235 974 000 cubit | 1 248 716 000 cubit | 1 261 458 000 cubit | 1 274 200 000 cubit |
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 | cubit | earth radius | cubit |
---|---|---|---|
1 | ≈ 12742000 | 4 | ≈ 50968000 |
1.5 | ≈ 19113000 | 4.5 | ≈ 57339000 |
2 | ≈ 25484000 | 5 | ≈ 63710000 |
2.5 | ≈ 31855000 | 5.5 | ≈ 70081000 |
3 | ≈ 38226000 | 6 | ≈ 76452000 |
The cubit is an ancient unit based on the forearm length from the tip of the middle finger to the bottom of the elbow. Cubits of various lengths were employed in many parts of the world in antiquity, during the Middle Ages and as recently as Early Modern Times. The term is still used in hedge laying, the length of the forearm being frequently used to determine the interval between stakes placed within the hedge.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
cubit | ≡ Distance from fingers to elbow ≈ 18 in | ≈ 0.5 m | Other (Length) |
cubit | earth radius | cubit | earth radius |
---|---|---|---|
1 | ≈ 7.8480615288024E-8 | 4 | ≈ 3.139224611521E-7 |
1.5 | ≈ 1.1772092293204E-7 | 4.5 | ≈ 3.5316276879611E-7 |
2 | ≈ 1.5696123057605E-7 | 5 | ≈ 3.9240307644012E-7 |
2.5 | ≈ 1.9620153822006E-7 | 5.5 | ≈ 4.3164338408413E-7 |
3 | ≈ 2.3544184586407E-7 | 6 | ≈ 4.7088369172814E-7 |
earth radius | cubit |
---|---|
1 | ≈ 12 742 000 |
7.8480615288024 × 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 …) |