circular mil | 1 circ mil | 2 circ mil | 3 circ mil | 4 circ mil | 5 circ mil | 6 circ mil | 7 circ mil | 8 circ mil | 9 circ mil | 10 circ mil | 11 circ mil | 12 circ mil | 13 circ mil | 14 circ mil | 15 circ mil | 16 circ mil | 17 circ mil | 18 circ mil | 19 circ mil | 20 circ mil | 21 circ mil | 22 circ mil | 23 circ mil | 24 circ mil | 25 circ mil | 26 circ mil | 27 circ mil | 28 circ mil | 29 circ mil | 30 circ mil | 31 circ mil | 32 circ mil | 33 circ mil | 34 circ mil | 35 circ mil | 36 circ mil | 37 circ mil | 38 circ mil | 39 circ mil | 40 circ mil | 41 circ mil | 42 circ mil | 43 circ mil | 44 circ mil | 45 circ mil | 46 circ mil | 47 circ mil | 48 circ mil | 49 circ mil | 50 circ mil | 51 circ mil | 52 circ mil | 53 circ mil | 54 circ mil | 55 circ mil | 56 circ mil | 57 circ mil | 58 circ mil | 59 circ mil | 60 circ mil | 61 circ mil | 62 circ mil | 63 circ mil | 64 circ mil | 65 circ mil | 66 circ mil | 67 circ mil | 68 circ mil | 69 circ mil | 70 circ mil | 71 circ mil | 72 circ mil | 73 circ mil | 74 circ mil | 75 circ mil | 76 circ mil | 77 circ mil | 78 circ mil | 79 circ mil | 80 circ mil | 81 circ mil | 82 circ mil | 83 circ mil | 84 circ mil | 85 circ mil | 86 circ mil | 87 circ mil | 88 circ mil | 89 circ mil | 90 circ mil | 91 circ mil | 92 circ mil | 93 circ mil | 94 circ mil | 95 circ mil | 96 circ mil | 97 circ mil | 98 circ mil | 99 circ mil | 100 circ mil |
board | 6.5449849649699 × 10-8 bd | 1.308996992994 × 10-7 bd | 1.963495489491 × 10-7 bd | 2.617993985988 × 10-7 bd | 3.272492482485 × 10-7 bd | 3.926990978982 × 10-7 bd | 4.581489475479 × 10-7 bd | 5.2359879719759 × 10-7 bd | 5.8904864684729 × 10-7 bd | 6.5449849649699 × 10-7 bd | 7.1994834614669 × 10-7 bd | 7.8539819579639 × 10-7 bd | 8.5084804544609 × 10-7 bd | 9.1629789509579 × 10-7 bd | 9.8174774474549 × 10-7 bd | 1.0471975943952 × 10-6 bd | 1.1126474440449 × 10-6 bd | 1.1780972936946 × 10-6 bd | 1.2435471433443 × 10-6 bd | 1.308996992994 × 10-6 bd | 1.3744468426437 × 10-6 bd | 1.4398966922934 × 10-6 bd | 1.5053465419431 × 10-6 bd | 1.5707963915928 × 10-6 bd | 1.6362462412425 × 10-6 bd | 1.7016960908922 × 10-6 bd | 1.7671459405419 × 10-6 bd | 1.8325957901916 × 10-6 bd | 1.8980456398413 × 10-6 bd | 1.963495489491 × 10-6 bd | 2.0289453391407 × 10-6 bd | 2.0943951887904 × 10-6 bd | 2.1598450384401 × 10-6 bd | 2.2252948880898 × 10-6 bd | 2.2907447377395 × 10-6 bd | 2.3561945873892 × 10-6 bd | 2.4216444370389 × 10-6 bd | 2.4870942866886 × 10-6 bd | 2.5525441363383 × 10-6 bd | 2.617993985988 × 10-6 bd | 2.6834438356377 × 10-6 bd | 2.7488936852874 × 10-6 bd | 2.8143435349371 × 10-6 bd | 2.8797933845868 × 10-6 bd | 2.9452432342365 × 10-6 bd | 3.0106930838862 × 10-6 bd | 3.0761429335359 × 10-6 bd | 3.1415927831856 × 10-6 bd | 3.2070426328353 × 10-6 bd | 3.272492482485 × 10-6 bd | 3.3379423321347 × 10-6 bd | 3.4033921817844 × 10-6 bd | 3.4688420314341 × 10-6 bd | 3.5342918810838 × 10-6 bd | 3.5997417307335 × 10-6 bd | 3.6651915803832 × 10-6 bd | 3.7306414300329 × 10-6 bd | 3.7960912796826 × 10-6 bd | 3.8615411293323 × 10-6 bd | 3.926990978982 × 10-6 bd | 3.9924408286317 × 10-6 bd | 4.0578906782814 × 10-6 bd | 4.1233405279311 × 10-6 bd | 4.1887903775808 × 10-6 bd | 4.2542402272305 × 10-6 bd | 4.3196900768802 × 10-6 bd | 4.3851399265299 × 10-6 bd | 4.4505897761796 × 10-6 bd | 4.5160396258293 × 10-6 bd | 4.581489475479 × 10-6 bd | 4.6469393251287 × 10-6 bd | 4.7123891747784 × 10-6 bd | 4.777839024428 × 10-6 bd | 4.8432888740777 × 10-6 bd | 4.9087387237274 × 10-6 bd | 4.9741885733771 × 10-6 bd | 5.0396384230268 × 10-6 bd | 5.1050882726765 × 10-6 bd | 5.1705381223262 × 10-6 bd | 5.2359879719759 × 10-6 bd | 5.3014378216256 × 10-6 bd | 5.3668876712753 × 10-6 bd | 5.432337520925 × 10-6 bd | 5.4977873705747 × 10-6 bd | 5.5632372202244 × 10-6 bd | 5.6286870698741 × 10-6 bd | 5.6941369195238 × 10-6 bd | 5.7595867691735 × 10-6 bd | 5.8250366188232 × 10-6 bd | 5.8904864684729 × 10-6 bd | 5.9559363181226 × 10-6 bd | 6.0213861677723 × 10-6 bd | 6.086836017422 × 10-6 bd | 6.1522858670717 × 10-6 bd | 6.2177357167214 × 10-6 bd | 6.2831855663711 × 10-6 bd | 6.3486354160208 × 10-6 bd | 6.4140852656705 × 10-6 bd | 6.4795351153202 × 10-6 bd | 6.5449849649699 × 10-6 bd |
A circular mil is a unit of area, equal to the area of a circle with a diameter of one mil (one thousandth of an inch). It corresponds to 5.067×10−4 mm². It is a unit intended for referring to the area of a wire with a circular cross section. As the area in circular mils can be calculated without reference to π, the unit makes conversion between cross section and diameter of a wire considerably easier.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
circular mil | circ mil | ≡ π⁄4 mil2 | ≈ 5.067075×10−10 m2 | Imperial/US |
circular mils | boards | circular mils | boards |
---|---|---|---|
1 | = 6.5449849649699E-8 | 6 | = 3.926990978982E-7 |
2 | = 1.308996992994E-7 | 7 | = 4.581489475479E-7 |
3 | = 1.963495489491E-7 | 8 | = 5.2359879719759E-7 |
4 | = 2.617993985988E-7 | 9 | = 5.8904864684729E-7 |
5 | = 3.272492482485E-7 | 10 | = 6.5449849649699E-7 |
Board is a unit of area.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
board | bd | ≡ 1 in × 1 ft | ≡ 7.74192×10−3 m2 | Other |
boards | circular mils | boards | circular mils |
---|---|---|---|
1 | = 15278873.906544 | 6 | = 91673243.439262 |
2 | = 30557747.813087 | 7 | = 106952117.34581 |
3 | = 45836621.719631 | 8 | = 122230991.25235 |
4 | = 61115495.626175 | 9 | = 137509865.15889 |
5 | = 76394369.532719 | 10 | = 152788739.06544 |
circular mils | boards |
---|---|
1 | = 6.5449849649699 × 10-8 |
15,278,873.906544 | = 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 …) |