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⊕ |
metric inch | 15 927 500 000 in (metric) | 31 855 000 000 in (metric) | 47 782 500 000 in (metric) | 63 710 000 000 in (metric) | 79 637 500 000 in (metric) | 95 565 000 000 in (metric) | 111 492 500 000 in (metric) | 127 420 000 000 in (metric) | 143 347 500 000 in (metric) | 159 275 000 000 in (metric) | 175 202 500 000 in (metric) | 191 130 000 000 in (metric) | 207 057 500 000 in (metric) | 222 985 000 000 in (metric) | 238 912 500 000 in (metric) | 254 840 000 000 in (metric) | 270 767 500 000 in (metric) | 286 695 000 000 in (metric) | 302 622 500 000 in (metric) | 318 550 000 000 in (metric) | 334 477 500 000 in (metric) | 350 405 000 000 in (metric) | 366 332 500 000 in (metric) | 382 260 000 000 in (metric) | 398 187 500 000 in (metric) | 414 115 000 000 in (metric) | 430 042 500 000 in (metric) | 445 970 000 000 in (metric) | 461 897 500 000 in (metric) | 477 825 000 000 in (metric) | 493 752 500 000 in (metric) | 509 680 000 000 in (metric) | 525 607 500 000 in (metric) | 541 535 000 000 in (metric) | 557 462 500 000 in (metric) | 573 390 000 000 in (metric) | 589 317 500 000 in (metric) | 605 245 000 000 in (metric) | 621 172 500 000 in (metric) | 637 100 000 000 in (metric) | 653 027 500 000 in (metric) | 668 955 000 000 in (metric) | 684 882 500 000 in (metric) | 700 810 000 000 in (metric) | 716 737 500 000 in (metric) | 732 665 000 000 in (metric) | 748 592 500 000 in (metric) | 764 520 000 000 in (metric) | 780 447 500 000 in (metric) | 796 375 000 000 in (metric) | 812 302 500 000 in (metric) | 828 230 000 000 in (metric) | 844 157 500 000 in (metric) | 860 085 000 000 in (metric) | 876 012 500 000 in (metric) | 891 940 000 000 in (metric) | 907 867 500 000 in (metric) | 923 795 000 000 in (metric) | 939 722 500 000 in (metric) | 955 650 000 000 in (metric) | 971 577 500 000 in (metric) | 987 505 000 000 in (metric) | 1 003 432 500 000 in (metric) | 1 019 360 000 000 in (metric) | 1 035 287 500 000 in (metric) | 1 051 215 000 000 in (metric) | 1 067 142 500 000 in (metric) | 1 083 070 000 000 in (metric) | 1 098 997 500 000 in (metric) | 1 114 925 000 000 in (metric) | 1 130 852 500 000 in (metric) | 1 146 780 000 000 in (metric) | 1 162 707 500 000 in (metric) | 1 178 635 000 000 in (metric) | 1 194 562 500 000 in (metric) | 1 210 490 000 000 in (metric) | 1 226 417 500 000 in (metric) | 1 242 345 000 000 in (metric) | 1 258 272 500 000 in (metric) | 1 274 200 000 000 in (metric) | 1 290 127 500 000 in (metric) | 1 306 055 000 000 in (metric) | 1 321 982 500 000 in (metric) | 1 337 910 000 000 in (metric) | 1 353 837 500 000 in (metric) | 1 369 765 000 000 in (metric) | 1 385 692 500 000 in (metric) | 1 401 620 000 000 in (metric) | 1 417 547 500 000 in (metric) | 1 433 475 000 000 in (metric) | 1 449 402 500 000 in (metric) | 1 465 330 000 000 in (metric) | 1 481 257 500 000 in (metric) | 1 497 185 000 000 in (metric) | 1 513 112 500 000 in (metric) | 1 529 040 000 000 in (metric) | 1 544 967 500 000 in (metric) | 1 560 895 000 000 in (metric) | 1 576 822 500 000 in (metric) | 1 592 750 000 000 in (metric) |
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 | metric inches | earth radius | metric inches |
---|---|---|---|
1 | ≈ 15927500000 | 4 | ≈ 63710000000 |
1.5 | ≈ 23891250000 | 4.5 | ≈ 71673750000 |
2 | ≈ 31855000000 | 5 | ≈ 79637500000 |
2.5 | ≈ 39818750000 | 5.5 | ≈ 87601250000 |
3 | ≈ 47782500000 | 6 | ≈ 95565000000 |
A metric inch is a nickname for a preferred 1⁄4 subdivision of an ISO 2848 basic module, or 1⁄12 of a metric foot measuring 25 millimetres (0.984 in). A metric inch is 0.4 millimetres (0.016 in) shorter than an inch.
The term was similarly used to refer to the historical Soviet Bloc practice of spacing integrated circuit pins at 1⁄10 of a 25 mm "metric inch" length, instead of the western practice of 1⁄10 of an imperial inch.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
metric inch | in (metric) | = 0.016 in | = 0.0004 m | Metric system SI |
metric inches | earth radius | metric inches | earth radius |
---|---|---|---|
1 | ≈ 6.2784492230419E-11 | 4 | ≈ 2.5113796892168E-10 |
1.5 | ≈ 9.4176738345629E-11 | 4.5 | ≈ 2.8253021503689E-10 |
2 | ≈ 1.2556898446084E-10 | 5 | ≈ 3.139224611521E-10 |
2.5 | ≈ 1.5696123057605E-10 | 5.5 | ≈ 3.453147072673E-10 |
3 | ≈ 1.8835347669126E-10 | 6 | ≈ 3.7670695338251E-10 |
earth radius | metric inches |
---|---|
1 | ≈ 15 927 500 000 |
6.2784492230419 × 10-11 | ≈ 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 …) |