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⊕ |
twip | 361,208,753,826.96 twp | 722,417,507,653.93 twp | 1,083,626,261,480.9 twp | 1,444,835,015,307.9 twp | 1,806,043,769,134.8 twp | 2,167,252,522,961.8 twp | 2,528,461,276,788.8 twp | 2,889,670,030,615.7 twp | 3,250,878,784,442.7 twp | 3,612,087,538,269.6 twp | 3,973,296,292,096.6 twp | 4,334,505,045,923.6 twp | 4,695,713,799,750.5 twp | 5,056,922,553,577.5 twp | 5,418,131,307,404.5 twp | 5,779,340,061,231.4 twp | 6,140,548,815,058.4 twp | 6,501,757,568,885.4 twp | 6,862,966,322,712.3 twp | 7,224,175,076,539.3 twp | 7,585,383,830,366.3 twp | 7,946,592,584,193.2 twp | 8,307,801,338,020.2 twp | 8,669,010,091,847.1 twp | 9,030,218,845,674.1 twp | 9,391,427,599,501.1 twp | 9 752 636 353 328 twp | 10 113 845 107 155 twp | 10 475 053 860 982 twp | 10 836 262 614 809 twp | 11 197 471 368 636 twp | 11 558 680 122 463 twp | 11 919 888 876 290 twp | 12 281 097 630 117 twp | 12 642 306 383 944 twp | 13 003 515 137 771 twp | 13 364 723 891 598 twp | 13 725 932 645 425 twp | 14 087 141 399 252 twp | 14 448 350 153 079 twp | 14 809 558 906 906 twp | 15 170 767 660 733 twp | 15 531 976 414 559 twp | 15 893 185 168 386 twp | 16 254 393 922 213 twp | 16 615 602 676 040 twp | 16 976 811 429 867 twp | 17 338 020 183 694 twp | 17 699 228 937 521 twp | 18 060 437 691 348 twp | 18 421 646 445 175 twp | 18 782 855 199 002 twp | 19 144 063 952 829 twp | 19 505 272 706 656 twp | 19 866 481 460 483 twp | 20 227 690 214 310 twp | 20 588 898 968 137 twp | 20 950 107 721 964 twp | 21 311 316 475 791 twp | 21 672 525 229 618 twp | 22 033 733 983 445 twp | 22 394 942 737 272 twp | 22 756 151 491 099 twp | 23 117 360 244 926 twp | 23 478 568 998 753 twp | 23 839 777 752 580 twp | 24 200 986 506 407 twp | 24 562 195 260 234 twp | 24 923 404 014 061 twp | 25 284 612 767 888 twp | 25 645 821 521 714 twp | 26 007 030 275 541 twp | 26 368 239 029 368 twp | 26 729 447 783 195 twp | 27 090 656 537 022 twp | 27 451 865 290 849 twp | 27 813 074 044 676 twp | 28 174 282 798 503 twp | 28 535 491 552 330 twp | 28 896 700 306 157 twp | 29 257 909 059 984 twp | 29 619 117 813 811 twp | 29 980 326 567 638 twp | 30 341 535 321 465 twp | 30 702 744 075 292 twp | 31 063 952 829 119 twp | 31 425 161 582 946 twp | 31 786 370 336 773 twp | 32 147 579 090 600 twp | 32 508 787 844 427 twp | 32 869 996 598 254 twp | 33 231 205 352 081 twp | 33 592 414 105 908 twp | 33 953 622 859 735 twp | 34 314 831 613 562 twp | 34 676 040 367 389 twp | 35 037 249 121 216 twp | 35 398 457 875 043 twp | 35 759 666 628 869 twp | 36 120 875 382 696 twp |
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 | twips | earth radius | twips |
---|---|---|---|
1 | ≈ 361208753826.96 | 4 | ≈ 1444835015307.9 |
1.5 | ≈ 541813130740.45 | 4.5 | ≈ 1625439392221.3 |
2 | ≈ 722417507653.93 | 5 | ≈ 1806043769134.8 |
2.5 | ≈ 903021884567.41 | 5.5 | ≈ 1986648146048.3 |
3 | ≈ 1083626261480.9 | 6 | ≈ 2167252522961.8 |
A twip (abbreviating "twentieth of a point", "twentieth of an inch point", or "twentieth of an Imperial point"[citation needed]) is a typographical measurement, defined as 1/20 of a typographical point. One twip is 1/1440 inch or 17.639 µm.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
twip | twp | ≡ 1⁄1440 in | = 1.7638×10−5 m | Imperial/US |
twips | earth radius | twips | earth radius |
---|---|---|---|
1 | ≈ 2.7684821849003E-12 | 4 | ≈ 1.1073928739601E-11 |
1.5 | ≈ 4.1527232773505E-12 | 4.5 | ≈ 1.2458169832051E-11 |
2 | ≈ 5.5369643698007E-12 | 5 | ≈ 1.3842410924502E-11 |
2.5 | ≈ 6.9212054622508E-12 | 5.5 | ≈ 1.5226652016952E-11 |
3 | ≈ 8.305446554701E-12 | 6 | ≈ 1.6610893109402E-11 |
earth radius | twips |
---|---|
1 | ≈ 361,208,753,826.96 |
2.7684821849003 × 10-12 | ≈ 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 …) |