quarter circle | 1 1/4 circle | 2 1/4 circle | 3 1/4 circle | 4 1/4 circle | 5 1/4 circle | 6 1/4 circle | 7 1/4 circle | 8 1/4 circle | 9 1/4 circle | 10 1/4 circle | 11 1/4 circle | 12 1/4 circle | 13 1/4 circle | 14 1/4 circle | 15 1/4 circle | 16 1/4 circle | 17 1/4 circle | 18 1/4 circle | 19 1/4 circle | 20 1/4 circle | 21 1/4 circle | 22 1/4 circle | 23 1/4 circle | 24 1/4 circle | 25 1/4 circle | 26 1/4 circle | 27 1/4 circle | 28 1/4 circle | 29 1/4 circle | 30 1/4 circle | 31 1/4 circle | 32 1/4 circle | 33 1/4 circle | 34 1/4 circle | 35 1/4 circle | 36 1/4 circle | 37 1/4 circle | 38 1/4 circle | 39 1/4 circle | 40 1/4 circle | 41 1/4 circle | 42 1/4 circle | 43 1/4 circle | 44 1/4 circle | 45 1/4 circle | 46 1/4 circle | 47 1/4 circle | 48 1/4 circle | 49 1/4 circle | 50 1/4 circle | 51 1/4 circle | 52 1/4 circle | 53 1/4 circle | 54 1/4 circle | 55 1/4 circle | 56 1/4 circle | 57 1/4 circle | 58 1/4 circle | 59 1/4 circle | 60 1/4 circle | 61 1/4 circle | 62 1/4 circle | 63 1/4 circle | 64 1/4 circle | 65 1/4 circle | 66 1/4 circle | 67 1/4 circle | 68 1/4 circle | 69 1/4 circle | 70 1/4 circle | 71 1/4 circle | 72 1/4 circle | 73 1/4 circle | 74 1/4 circle | 75 1/4 circle | 76 1/4 circle | 77 1/4 circle | 78 1/4 circle | 79 1/4 circle | 80 1/4 circle | 81 1/4 circle | 82 1/4 circle | 83 1/4 circle | 84 1/4 circle | 85 1/4 circle | 86 1/4 circle | 87 1/4 circle | 88 1/4 circle | 89 1/4 circle | 90 1/4 circle | 91 1/4 circle | 92 1/4 circle | 93 1/4 circle | 94 1/4 circle | 95 1/4 circle | 96 1/4 circle | 97 1/4 circle | 98 1/4 circle | 99 1/4 circle | 100 1/4 circle |
angular mil | 101,859.1653163 µ | 203,718.3306327 µ | 305,577.4959490 µ | 407,436.6612654 µ | 509,295.8265817 µ | 611,154.9918981 µ | 713,014.1572144 µ | 814,873.3225307 µ | 916,732.4878471 µ | 1,018,591.6531634 µ | 1,120,450.8184798 µ | 1,222,309.9837961 µ | 1,324,169.1491125 µ | 1,426,028.3144288 µ | 1,527,887.4797451 µ | 1,629,746.6450615 µ | 1,731,605.8103778 µ | 1,833,464.9756942 µ | 1,935,324.1410105 µ | 2,037,183.3063269 µ | 2,139,042.4716432 µ | 2,240,901.6369595 µ | 2,342,760.8022759 µ | 2,444,619.9675922 µ | 2,546,479.1329086 µ | 2,648,338.2982249 µ | 2,750,197.4635413 µ | 2,852,056.6288576 µ | 2,953,915.7941739 µ | 3,055,774.9594903 µ | 3,157,634.1248066 µ | 3,259,493.290123 µ | 3,361,352.4554393 µ | 3,463,211.6207557 µ | 3,565,070.786072 µ | 3,666,929.9513883 µ | 3,768,789.1167047 µ | 3,870,648.282021 µ | 3,972,507.4473374 µ | 4,074,366.6126537 µ | 4,176,225.7779701 µ | 4,278,084.9432864 µ | 4,379,944.1086028 µ | 4,481,803.2739191 µ | 4,583,662.4392354 µ | 4,685,521.6045518 µ | 4,787,380.7698681 µ | 4,889,239.9351845 µ | 4,991,099.1005008 µ | 5,092,958.2658172 µ | 5,194,817.4311335 µ | 5,296,676.5964498 µ | 5,398,535.7617662 µ | 5,500,394.9270825 µ | 5,602,254.0923989 µ | 5,704,113.2577152 µ | 5,805,972.4230316 µ | 5,907,831.5883479 µ | 6,009,690.7536642 µ | 6,111,549.9189806 µ | 6,213,409.0842969 µ | 6,315,268.2496133 µ | 6,417,127.4149296 µ | 6,518,986.580246 µ | 6,620,845.7455623 µ | 6,722,704.9108786 µ | 6,824,564.076195 µ | 6,926,423.2415113 µ | 7,028,282.4068277 µ | 7,130,141.572144 µ | 7,232,000.7374604 µ | 7,333,859.9027767 µ | 7,435,719.068093 µ | 7,537,578.2334094 µ | 7,639,437.3987257 µ | 7,741,296.5640421 µ | 7,843,155.7293584 µ | 7,945,014.8946748 µ | 8,046,874.0599911 µ | 8,148,733.2253074 µ | 8,250,592.3906238 µ | 8,352,451.5559401 µ | 8,454,310.7212565 µ | 8,556,169.8865728 µ | 8,658,029.0518892 µ | 8,759,888.2172055 µ | 8,861,747.3825218 µ | 8,963,606.5478382 µ | 9,065,465.7131545 µ | 9,167,324.8784709 µ | 9,269,184.0437872 µ | 9,371,043.2091036 µ | 9,472,902.3744199 µ | 9,574,761.5397362 µ | 9,676,620.7050526 µ | 9,778,479.8703689 µ | 9,880,339.0356853 µ | 9,982,198.2010016 µ | 10,084,057.366318 µ | 10,185,916.531634 µ |
1/4 circle or quarter circle is equal to 360°/4 = 90°. Plural name is quarter circles.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
quarter circle | 1/4 circle | ≡ 45 ° | = 1.5707963 rad | Metric system SI |
quarter circles | angular mils | quarter circles | angular mils |
---|---|---|---|
1 | ≈ 101859.16531634 | 6 | ≈ 611154.99189806 |
2 | ≈ 203718.33063269 | 7 | ≈ 713014.1572144 |
3 | ≈ 305577.49594903 | 8 | ≈ 814873.32253074 |
4 | ≈ 407436.66126537 | 9 | ≈ 916732.48784709 |
5 | ≈ 509295.82658172 | 10 | ≈ 1018591.6531634 |
A angular mil is the unit of angular measurement equal to 1/6400 of a complete circle. At 1000 metres one mil subtends about one metre (~0,98 m). Also 1/6000 and 1/6300 are used in other countries.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
angular mil | µ | ≡ 2π⁄6400 rad | ≈ 0.981748×10−3 rad | Metric system SI |
angular mils | quarter circles | angular mils | quarter circles |
---|---|---|---|
1 | ≈ 9.817476875E-6 | 6 | ≈ 5.890486125E-5 |
2 | ≈ 1.963495375E-5 | 7 | ≈ 6.8722338125E-5 |
3 | ≈ 2.9452430625E-5 | 8 | ≈ 7.8539815E-5 |
4 | ≈ 3.92699075E-5 | 9 | ≈ 8.8357291875E-5 |
5 | ≈ 4.9087384375E-5 | 10 | ≈ 9.817476875E-5 |
quarter circles | angular mils |
---|---|
1 | ≈ 101,859.1653163 |
9.817476875 × 10-6 | ≈ 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 …) |