inch | 1 in | 2 in | 3 in | 4 in | 5 in | 6 in | 7 in | 8 in | 9 in | 10 in | 11 in | 12 in | 13 in | 14 in | 15 in | 16 in | 17 in | 18 in | 19 in | 20 in | 21 in | 22 in | 23 in | 24 in | 25 in | 26 in | 27 in | 28 in | 29 in | 30 in | 31 in | 32 in | 33 in | 34 in | 35 in | 36 in | 37 in | 38 in | 39 in | 40 in | 41 in | 42 in | 43 in | 44 in | 45 in | 46 in | 47 in | 48 in | 49 in | 50 in | 51 in | 52 in | 53 in | 54 in | 55 in | 56 in | 57 in | 58 in | 59 in | 60 in | 61 in | 62 in | 63 in | 64 in | 65 in | 66 in | 67 in | 68 in | 69 in | 70 in | 71 in | 72 in | 73 in | 74 in | 75 in | 76 in | 77 in | 78 in | 79 in | 80 in | 81 in | 82 in | 83 in | 84 in | 85 in | 86 in | 87 in | 88 in | 89 in | 90 in | 91 in | 92 in | 93 in | 94 in | 95 in | 96 in | 97 in | 98 in | 99 in | 100 in |
earth radius | 3.9868152566316 × 10-9R⊕ | 7.9736305132632 × 10-9R⊕ | 1.1960445769895 × 10-8R⊕ | 1.5947261026526 × 10-8R⊕ | 1.9934076283158 × 10-8R⊕ | 2.392089153979 × 10-8R⊕ | 2.7907706796421 × 10-8R⊕ | 3.1894522053053 × 10-8R⊕ | 3.5881337309685 × 10-8R⊕ | 3.9868152566316 × 10-8R⊕ | 4.3854967822948 × 10-8R⊕ | 4.7841783079579 × 10-8R⊕ | 5.1828598336211 × 10-8R⊕ | 5.5815413592843 × 10-8R⊕ | 5.9802228849474 × 10-8R⊕ | 6.3789044106106 × 10-8R⊕ | 6.7775859362737 × 10-8R⊕ | 7.1762674619369 × 10-8R⊕ | 7.5749489876001 × 10-8R⊕ | 7.9736305132632 × 10-8R⊕ | 8.3723120389264 × 10-8R⊕ | 8.7709935645895 × 10-8R⊕ | 9.1696750902527 × 10-8R⊕ | 9.5683566159159 × 10-8R⊕ | 9.967038141579 × 10-8R⊕ | 1.0365719667242 × 10-7R⊕ | 1.0764401192905 × 10-7R⊕ | 1.1163082718569 × 10-7R⊕ | 1.1561764244232 × 10-7R⊕ | 1.1960445769895 × 10-7R⊕ | 1.2359127295558 × 10-7R⊕ | 1.2757808821221 × 10-7R⊕ | 1.3156490346884 × 10-7R⊕ | 1.3555171872547 × 10-7R⊕ | 1.3953853398211 × 10-7R⊕ | 1.4352534923874 × 10-7R⊕ | 1.4751216449537 × 10-7R⊕ | 1.51498979752 × 10-7R⊕ | 1.5548579500863 × 10-7R⊕ | 1.5947261026526 × 10-7R⊕ | 1.634594255219 × 10-7R⊕ | 1.6744624077853 × 10-7R⊕ | 1.7143305603516 × 10-7R⊕ | 1.7541987129179 × 10-7R⊕ | 1.7940668654842 × 10-7R⊕ | 1.8339350180505 × 10-7R⊕ | 1.8738031706169 × 10-7R⊕ | 1.9136713231832 × 10-7R⊕ | 1.9535394757495 × 10-7R⊕ | 1.9934076283158 × 10-7R⊕ | 2.0332757808821 × 10-7R⊕ | 2.0731439334484 × 10-7R⊕ | 2.1130120860148 × 10-7R⊕ | 2.1528802385811 × 10-7R⊕ | 2.1927483911474 × 10-7R⊕ | 2.2326165437137 × 10-7R⊕ | 2.27248469628 × 10-7R⊕ | 2.3123528488463 × 10-7R⊕ | 2.3522210014127 × 10-7R⊕ | 2.392089153979 × 10-7R⊕ | 2.4319573065453 × 10-7R⊕ | 2.4718254591116 × 10-7R⊕ | 2.5116936116779 × 10-7R⊕ | 2.5515617642442 × 10-7R⊕ | 2.5914299168105 × 10-7R⊕ | 2.6312980693769 × 10-7R⊕ | 2.6711662219432 × 10-7R⊕ | 2.7110343745095 × 10-7R⊕ | 2.7509025270758 × 10-7R⊕ | 2.7907706796421 × 10-7R⊕ | 2.8306388322084 × 10-7R⊕ | 2.8705069847748 × 10-7R⊕ | 2.9103751373411 × 10-7R⊕ | 2.9502432899074 × 10-7R⊕ | 2.9901114424737 × 10-7R⊕ | 3.02997959504 × 10-7R⊕ | 3.0698477476063 × 10-7R⊕ | 3.1097159001727 × 10-7R⊕ | 3.149584052739 × 10-7R⊕ | 3.1894522053053 × 10-7R⊕ | 3.2293203578716 × 10-7R⊕ | 3.2691885104379 × 10-7R⊕ | 3.3090566630042 × 10-7R⊕ | 3.3489248155706 × 10-7R⊕ | 3.3887929681369 × 10-7R⊕ | 3.4286611207032 × 10-7R⊕ | 3.4685292732695 × 10-7R⊕ | 3.5083974258358 × 10-7R⊕ | 3.5482655784021 × 10-7R⊕ | 3.5881337309685 × 10-7R⊕ | 3.6280018835348 × 10-7R⊕ | 3.6678700361011 × 10-7R⊕ | 3.7077381886674 × 10-7R⊕ | 3.7476063412337 × 10-7R⊕ | 3.7874744938 × 10-7R⊕ | 3.8273426463663 × 10-7R⊕ | 3.8672107989327 × 10-7R⊕ | 3.907078951499 × 10-7R⊕ | 3.9469471040653 × 10-7R⊕ | 3.9868152566316 × 10-7R⊕ |
The inch (abbreviation: in or ″) is a unit of length in the (British) imperial and United States customary systems of measurement now formally equal to 1⁄36 yard but usually understood as 1⁄12 of a foot. Derived from the Roman uncia ("twelfth"), inch is also sometimes used to translate related units in other measurement systems, usually understood as deriving from the width of the human thumb.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
inch | in | ≡ 2.54 cm ≡ 1⁄36 yd ≡ 1⁄12 ft | ≡ 0.0254 m | Imperial/US |
inches | earth radius | inches | earth radius |
---|---|---|---|
1 | ≈ 3.9868152566316E-9 | 4 | ≈ 1.5947261026526E-8 |
1.5 | ≈ 5.9802228849474E-9 | 4.5 | ≈ 1.7940668654842E-8 |
2 | ≈ 7.9736305132632E-9 | 5 | ≈ 1.9934076283158E-8 |
2.5 | ≈ 9.967038141579E-9 | 5.5 | ≈ 2.1927483911474E-8 |
3 | ≈ 1.1960445769895E-8 | 6 | ≈ 2.392089153979E-8 |
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 | inches | earth radius | inches |
---|---|---|---|
1 | ≈ 250826771.65354 | 4 | ≈ 1003307086.6142 |
1.5 | ≈ 376240157.48031 | 4.5 | ≈ 1128720472.4409 |
2 | ≈ 501653543.30709 | 5 | ≈ 1254133858.2677 |
2.5 | ≈ 627066929.13386 | 5.5 | ≈ 1379547244.0945 |
3 | ≈ 752480314.96063 | 6 | ≈ 1504960629.9213 |
inches | earth radius |
---|---|
1 | ≈ 3.9868152566316 × 10-9 |
250,826,771.65354 | ≈ 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 …) |