quarter | 1 qr. | 2 qr. | 3 qr. | 4 qr. | 5 qr. | 6 qr. | 7 qr. | 8 qr. | 9 qr. | 10 qr. | 11 qr. | 12 qr. | 13 qr. | 14 qr. | 15 qr. | 16 qr. | 17 qr. | 18 qr. | 19 qr. | 20 qr. | 21 qr. | 22 qr. | 23 qr. | 24 qr. | 25 qr. | 26 qr. | 27 qr. | 28 qr. | 29 qr. | 30 qr. | 31 qr. | 32 qr. | 33 qr. | 34 qr. | 35 qr. | 36 qr. | 37 qr. | 38 qr. | 39 qr. | 40 qr. | 41 qr. | 42 qr. | 43 qr. | 44 qr. | 45 qr. | 46 qr. | 47 qr. | 48 qr. | 49 qr. | 50 qr. | 51 qr. | 52 qr. | 53 qr. | 54 qr. | 55 qr. | 56 qr. | 57 qr. | 58 qr. | 59 qr. | 60 qr. | 61 qr. | 62 qr. | 63 qr. | 64 qr. | 65 qr. | 66 qr. | 67 qr. | 68 qr. | 69 qr. | 70 qr. | 71 qr. | 72 qr. | 73 qr. | 74 qr. | 75 qr. | 76 qr. | 77 qr. | 78 qr. | 79 qr. | 80 qr. | 81 qr. | 82 qr. | 83 qr. | 84 qr. | 85 qr. | 86 qr. | 87 qr. | 88 qr. | 89 qr. | 90 qr. | 91 qr. | 92 qr. | 93 qr. | 94 qr. | 95 qr. | 96 qr. | 97 qr. | 98 qr. | 99 qr. | 100 qr. |
earth radius | 3.5881337309685 × 10-8R⊕ | 7.1762674619369 × 10-8R⊕ | 1.0764401192905 × 10-7R⊕ | 1.4352534923874 × 10-7R⊕ | 1.7940668654842 × 10-7R⊕ | 2.1528802385811 × 10-7R⊕ | 2.5116936116779 × 10-7R⊕ | 2.8705069847748 × 10-7R⊕ | 3.2293203578716 × 10-7R⊕ | 3.5881337309685 × 10-7R⊕ | 3.9469471040653 × 10-7R⊕ | 4.3057604771621 × 10-7R⊕ | 4.664573850259 × 10-7R⊕ | 5.0233872233558 × 10-7R⊕ | 5.3822005964527 × 10-7R⊕ | 5.7410139695495 × 10-7R⊕ | 6.0998273426464 × 10-7R⊕ | 6.4586407157432 × 10-7R⊕ | 6.8174540888401 × 10-7R⊕ | 7.1762674619369 × 10-7R⊕ | 7.5350808350337 × 10-7R⊕ | 7.8938942081306 × 10-7R⊕ | 8.2527075812274 × 10-7R⊕ | 8.6115209543243 × 10-7R⊕ | 8.9703343274211 × 10-7R⊕ | 9.329147700518 × 10-7R⊕ | 9.6879610736148 × 10-7R⊕ | 1.0046774446712 × 10-6R⊕ | 1.0405587819809 × 10-6R⊕ | 1.0764401192905 × 10-6R⊕ | 1.1123214566002 × 10-6R⊕ | 1.1482027939099 × 10-6R⊕ | 1.1840841312196 × 10-6R⊕ | 1.2199654685293 × 10-6R⊕ | 1.255846805839 × 10-6R⊕ | 1.2917281431486 × 10-6R⊕ | 1.3276094804583 × 10-6R⊕ | 1.363490817768 × 10-6R⊕ | 1.3993721550777 × 10-6R⊕ | 1.4352534923874 × 10-6R⊕ | 1.4711348296971 × 10-6R⊕ | 1.5070161670067 × 10-6R⊕ | 1.5428975043164 × 10-6R⊕ | 1.5787788416261 × 10-6R⊕ | 1.6146601789358 × 10-6R⊕ | 1.6505415162455 × 10-6R⊕ | 1.6864228535552 × 10-6R⊕ | 1.7223041908649 × 10-6R⊕ | 1.7581855281745 × 10-6R⊕ | 1.7940668654842 × 10-6R⊕ | 1.8299482027939 × 10-6R⊕ | 1.8658295401036 × 10-6R⊕ | 1.9017108774133 × 10-6R⊕ | 1.937592214723 × 10-6R⊕ | 1.9734735520326 × 10-6R⊕ | 2.0093548893423 × 10-6R⊕ | 2.045236226652 × 10-6R⊕ | 2.0811175639617 × 10-6R⊕ | 2.1169989012714 × 10-6R⊕ | 2.1528802385811 × 10-6R⊕ | 2.1887615758908 × 10-6R⊕ | 2.2246429132004 × 10-6R⊕ | 2.2605242505101 × 10-6R⊕ | 2.2964055878198 × 10-6R⊕ | 2.3322869251295 × 10-6R⊕ | 2.3681682624392 × 10-6R⊕ | 2.4040495997489 × 10-6R⊕ | 2.4399309370585 × 10-6R⊕ | 2.4758122743682 × 10-6R⊕ | 2.5116936116779 × 10-6R⊕ | 2.5475749489876 × 10-6R⊕ | 2.5834562862973 × 10-6R⊕ | 2.619337623607 × 10-6R⊕ | 2.6552189609167 × 10-6R⊕ | 2.6911002982263 × 10-6R⊕ | 2.726981635536 × 10-6R⊕ | 2.7628629728457 × 10-6R⊕ | 2.7987443101554 × 10-6R⊕ | 2.8346256474651 × 10-6R⊕ | 2.8705069847748 × 10-6R⊕ | 2.9063883220844 × 10-6R⊕ | 2.9422696593941 × 10-6R⊕ | 2.9781509967038 × 10-6R⊕ | 3.0140323340135 × 10-6R⊕ | 3.0499136713232 × 10-6R⊕ | 3.0857950086329 × 10-6R⊕ | 3.1216763459426 × 10-6R⊕ | 3.1575576832522 × 10-6R⊕ | 3.1934390205619 × 10-6R⊕ | 3.2293203578716 × 10-6R⊕ | 3.2652016951813 × 10-6R⊕ | 3.301083032491 × 10-6R⊕ | 3.3369643698007 × 10-6R⊕ | 3.3728457071103 × 10-6R⊕ | 3.40872704442 × 10-6R⊕ | 3.4446083817297 × 10-6R⊕ | 3.4804897190394 × 10-6R⊕ | 3.5163710563491 × 10-6R⊕ | 3.5522523936588 × 10-6R⊕ | 3.5881337309685 × 10-6R⊕ |
The quarter (lit. "one-fourth") is used as the name of several distinct English units based on ¼ sizes of some base unit.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
quarter | qr. | ≡ 1⁄4 yd | = 0.2286 m | Metric system SI |
quarters | earth radius | quarters | earth radius |
---|---|---|---|
1 | ≈ 3.5881337309685E-8 | 4 | ≈ 1.4352534923874E-7 |
1.5 | ≈ 5.3822005964527E-8 | 4.5 | ≈ 1.6146601789358E-7 |
2 | ≈ 7.1762674619369E-8 | 5 | ≈ 1.7940668654842E-7 |
2.5 | ≈ 8.9703343274211E-8 | 5.5 | ≈ 1.9734735520326E-7 |
3 | ≈ 1.0764401192905E-7 | 6 | ≈ 2.1528802385811E-7 |
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 | quarters | earth radius | quarters |
---|---|---|---|
1 | ≈ 27869641.294838 | 4 | ≈ 111478565.17935 |
1.5 | ≈ 41804461.942257 | 4.5 | ≈ 125413385.82677 |
2 | ≈ 55739282.589676 | 5 | ≈ 139348206.47419 |
2.5 | ≈ 69674103.237095 | 5.5 | ≈ 153283027.12161 |
3 | ≈ 83608923.884514 | 6 | ≈ 167217847.76903 |
quarters | earth radius |
---|---|
1 | ≈ 3.5881337309685 × 10-8 |
27,869,641.294838 | ≈ 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 …) |