rod | 1 rd | 2 rd | 3 rd | 4 rd | 5 rd | 6 rd | 7 rd | 8 rd | 9 rd | 10 rd | 11 rd | 12 rd | 13 rd | 14 rd | 15 rd | 16 rd | 17 rd | 18 rd | 19 rd | 20 rd | 21 rd | 22 rd | 23 rd | 24 rd | 25 rd | 26 rd | 27 rd | 28 rd | 29 rd | 30 rd | 31 rd | 32 rd | 33 rd | 34 rd | 35 rd | 36 rd | 37 rd | 38 rd | 39 rd | 40 rd | 41 rd | 42 rd | 43 rd | 44 rd | 45 rd | 46 rd | 47 rd | 48 rd | 49 rd | 50 rd | 51 rd | 52 rd | 53 rd | 54 rd | 55 rd | 56 rd | 57 rd | 58 rd | 59 rd | 60 rd | 61 rd | 62 rd | 63 rd | 64 rd | 65 rd | 66 rd | 67 rd | 68 rd | 69 rd | 70 rd | 71 rd | 72 rd | 73 rd | 74 rd | 75 rd | 76 rd | 77 rd | 78 rd | 79 rd | 80 rd | 81 rd | 82 rd | 83 rd | 84 rd | 85 rd | 86 rd | 87 rd | 88 rd | 89 rd | 90 rd | 91 rd | 92 rd | 93 rd | 94 rd | 95 rd | 96 rd | 97 rd | 98 rd | 99 rd | 100 rd |
earth radius | 7.8938942081306 × 10-7R⊕ | 1.5787788416261 × 10-6R⊕ | 2.3681682624392 × 10-6R⊕ | 3.1575576832522 × 10-6R⊕ | 3.9469471040653 × 10-6R⊕ | 4.7363365248784 × 10-6R⊕ | 5.5257259456914 × 10-6R⊕ | 6.3151153665045 × 10-6R⊕ | 7.1045047873175 × 10-6R⊕ | 7.8938942081306 × 10-6R⊕ | 8.6832836289437 × 10-6R⊕ | 9.4726730497567 × 10-6R⊕ | 1.026206247057 × 10-5R⊕ | 1.1051451891383 × 10-5R⊕ | 1.1840841312196 × 10-5R⊕ | 1.2630230733009 × 10-5R⊕ | 1.3419620153822 × 10-5R⊕ | 1.4209009574635 × 10-5R⊕ | 1.4998398995448 × 10-5R⊕ | 1.5787788416261 × 10-5R⊕ | 1.6577177837074 × 10-5R⊕ | 1.7366567257887 × 10-5R⊕ | 1.81559566787 × 10-5R⊕ | 1.8945346099513 × 10-5R⊕ | 1.9734735520326 × 10-5R⊕ | 2.052412494114 × 10-5R⊕ | 2.1313514361953 × 10-5R⊕ | 2.2102903782766 × 10-5R⊕ | 2.2892293203579 × 10-5R⊕ | 2.3681682624392 × 10-5R⊕ | 2.4471072045205 × 10-5R⊕ | 2.5260461466018 × 10-5R⊕ | 2.6049850886831 × 10-5R⊕ | 2.6839240307644 × 10-5R⊕ | 2.7628629728457 × 10-5R⊕ | 2.841801914927 × 10-5R⊕ | 2.9207408570083 × 10-5R⊕ | 2.9996797990896 × 10-5R⊕ | 3.0786187411709 × 10-5R⊕ | 3.1575576832522 × 10-5R⊕ | 3.2364966253335 × 10-5R⊕ | 3.3154355674148 × 10-5R⊕ | 3.3943745094962 × 10-5R⊕ | 3.4733134515775 × 10-5R⊕ | 3.5522523936588 × 10-5R⊕ | 3.6311913357401 × 10-5R⊕ | 3.7101302778214 × 10-5R⊕ | 3.7890692199027 × 10-5R⊕ | 3.868008161984 × 10-5R⊕ | 3.9469471040653 × 10-5R⊕ | 4.0258860461466 × 10-5R⊕ | 4.1048249882279 × 10-5R⊕ | 4.1837639303092 × 10-5R⊕ | 4.2627028723905 × 10-5R⊕ | 4.3416418144718 × 10-5R⊕ | 4.4205807565531 × 10-5R⊕ | 4.4995196986344 × 10-5R⊕ | 4.5784586407157 × 10-5R⊕ | 4.657397582797 × 10-5R⊕ | 4.7363365248784 × 10-5R⊕ | 4.8152754669597 × 10-5R⊕ | 4.894214409041 × 10-5R⊕ | 4.9731533511223 × 10-5R⊕ | 5.0520922932036 × 10-5R⊕ | 5.1310312352849 × 10-5R⊕ | 5.2099701773662 × 10-5R⊕ | 5.2889091194475 × 10-5R⊕ | 5.3678480615288 × 10-5R⊕ | 5.4467870036101 × 10-5R⊕ | 5.5257259456914 × 10-5R⊕ | 5.6046648877727 × 10-5R⊕ | 5.683603829854 × 10-5R⊕ | 5.7625427719353 × 10-5R⊕ | 5.8414817140166 × 10-5R⊕ | 5.9204206560979 × 10-5R⊕ | 5.9993595981792 × 10-5R⊕ | 6.0782985402606 × 10-5R⊕ | 6.1572374823419 × 10-5R⊕ | 6.2361764244232 × 10-5R⊕ | 6.3151153665045 × 10-5R⊕ | 6.3940543085858 × 10-5R⊕ | 6.4729932506671 × 10-5R⊕ | 6.5519321927484 × 10-5R⊕ | 6.6308711348297 × 10-5R⊕ | 6.709810076911 × 10-5R⊕ | 6.7887490189923 × 10-5R⊕ | 6.8676879610736 × 10-5R⊕ | 6.9466269031549 × 10-5R⊕ | 7.0255658452362 × 10-5R⊕ | 7.1045047873175 × 10-5R⊕ | 7.1834437293988 × 10-5R⊕ | 7.2623826714801 × 10-5R⊕ | 7.3413216135615 × 10-5R⊕ | 7.4202605556428 × 10-5R⊕ | 7.4991994977241 × 10-5R⊕ | 7.5781384398054 × 10-5R⊕ | 7.6570773818867 × 10-5R⊕ | 7.736016323968 × 10-5R⊕ | 7.8149552660493 × 10-5R⊕ | 7.8938942081306 × 10-5R⊕ |
The rod or perch or pole is a surveyors tool and unit of length equal to 5 1⁄2 yards, 16 1⁄2 feet, 1⁄320 of a statute mile or one-fourth of a surveyor's chain and 5.0292 meters.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
rod | rd | ≡ 16 1⁄2 ft | = 5.0292 m | Imperial/US |
rods | earth radius | rods | earth radius |
---|---|---|---|
1 | ≈ 7.8938942081306E-7 | 4 | ≈ 3.1575576832522E-6 |
1.5 | ≈ 1.1840841312196E-6 | 4.5 | ≈ 3.5522523936588E-6 |
2 | ≈ 1.5787788416261E-6 | 5 | ≈ 3.9469471040653E-6 |
2.5 | ≈ 1.9734735520326E-6 | 5.5 | ≈ 4.3416418144718E-6 |
3 | ≈ 2.3681682624392E-6 | 6 | ≈ 4.7363365248784E-6 |
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 | rods | earth radius | rods |
---|---|---|---|
1 | ≈ 1266801.8770381 | 4 | ≈ 5067207.5081524 |
1.5 | ≈ 1900202.8155571 | 4.5 | ≈ 5700608.4466714 |
2 | ≈ 2533603.7540762 | 5 | ≈ 6334009.3851905 |
2.5 | ≈ 3167004.6925952 | 5.5 | ≈ 6967410.3237095 |
3 | ≈ 3800405.6311143 | 6 | ≈ 7600811.2622286 |
rods | earth radius |
---|---|
1 | ≈ 7.8938942081306 × 10-7 |
1,266,801.8770381 | ≈ 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 …) |