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 |
square mil | 0.7853982 sq mil | 1.5707964 sq mil | 2.3561946 sq mil | 3.1415928 sq mil | 3.9269910 sq mil | 4.7123892 sq mil | 5.4977874 sq mil | 6.2831856 sq mil | 7.0685838 sq mil | 7.8539820 sq mil | 8.6393802 sq mil | 9.4247783 sq mil | 10.2101765 sq mil | 10.9955747 sq mil | 11.7809729 sq mil | 12.5663711 sq mil | 13.3517693 sq mil | 14.1371675 sq mil | 14.9225657 sq mil | 15.7079639 sq mil | 16.4933621 sq mil | 17.2787603 sq mil | 18.0641585 sq mil | 18.8495567 sq mil | 19.6349549 sq mil | 20.4203531 sq mil | 21.2057513 sq mil | 21.9911495 sq mil | 22.7765477 sq mil | 23.5619459 sq mil | 24.3473441 sq mil | 25.1327423 sq mil | 25.9181405 sq mil | 26.7035387 sq mil | 27.4889369 sq mil | 28.2743350 sq mil | 29.0597332 sq mil | 29.8451314 sq mil | 30.6305296 sq mil | 31.4159278 sq mil | 32.2013260 sq mil | 32.9867242 sq mil | 33.7721224 sq mil | 34.5575206 sq mil | 35.3429188 sq mil | 36.1283170 sq mil | 36.9137152 sq mil | 37.6991134 sq mil | 38.4845116 sq mil | 39.2699098 sq mil | 40.0553080 sq mil | 40.8407062 sq mil | 41.6261044 sq mil | 42.4115026 sq mil | 43.1969008 sq mil | 43.9822990 sq mil | 44.7676972 sq mil | 45.5530954 sq mil | 46.3384936 sq mil | 47.1238917 sq mil | 47.9092899 sq mil | 48.6946881 sq mil | 49.4800863 sq mil | 50.2654845 sq mil | 51.0508827 sq mil | 51.8362809 sq mil | 52.6216791 sq mil | 53.4070773 sq mil | 54.1924755 sq mil | 54.9778737 sq mil | 55.7632719 sq mil | 56.5486701 sq mil | 57.3340683 sq mil | 58.1194665 sq mil | 58.9048647 sq mil | 59.6902629 sq mil | 60.4756611 sq mil | 61.2610593 sq mil | 62.0464575 sq mil | 62.8318557 sq mil | 63.6172539 sq mil | 64.4026521 sq mil | 65.1880503 sq mil | 65.9734484 sq mil | 66.7588466 sq mil | 67.5442448 sq mil | 68.3296430 sq mil | 69.1150412 sq mil | 69.9004394 sq mil | 70.6858376 sq mil | 71.4712358 sq mil | 72.2566340 sq mil | 73.0420322 sq mil | 73.8274304 sq mil | 74.6128286 sq mil | 75.3982268 sq mil | 76.1836250 sq mil | 76.9690232 sq mil | 77.7544214 sq mil | 78.5398196 sq mil |
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 | square mils | circular mils | square mils |
---|---|---|---|
1 | = 0.78539819579639 | 6 | = 4.7123891747783 |
2 | = 1.5707963915928 | 7 | = 5.4977873705747 |
3 | = 2.3561945873892 | 8 | = 6.2831855663711 |
4 | = 3.1415927831856 | 9 | = 7.0685837621675 |
5 | = 3.926990978982 | 10 | = 7.8539819579639 |
A square mil is a unit of area, equal to the area of a square with sides of length one mil. A mil is one thousandth of an international inch. This unit of area is usually used in specifying the area of the cross section of a wire or cable.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
square mil | sq mil | ≡ 1 mil × 1 mil | = 6.4516×10−10 m2 | Imperial/US |
square mils | circular mils | square mils | circular mils |
---|---|---|---|
1 | = 1.273239492212 | 6 | = 7.6394369532719 |
2 | = 2.546478984424 | 7 | = 8.9126764454838 |
3 | = 3.8197184766359 | 8 | = 10.185915937696 |
4 | = 5.0929579688479 | 9 | = 11.459155429908 |
5 | = 6.3661974610599 | 10 | = 12.73239492212 |
circular mils | square mils |
---|---|
1 | = 0.7853982 |
1.2732395 | = 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 …) |