1 circular mils = 0.0005067 square millimeters 

Circular mils to Square millimeters Conversion

Circular mil to square millimeter conversion allow you make a conversion between circular mil and square millimeter easily. You can find the tool in the following.

Area Conversion


= 0.00050671
= 506708 × 10-9
= 506708E-9
= 506708e-9
= 0.00101342
= 101342 × 10-8
= 101342E-8
= 101342e-8
= 0.00152012
= 152012 × 10-8
= 152012E-8
= 152012e-8
= 0.00202683
= 202683 × 10-8
= 202683E-8
= 202683e-8
= 0.00253354
= 253354 × 10-8
= 253354E-8
= 253354e-8

Quick Look: circular mils to square millimeters

circular mil1 circ mil2 circ mil3 circ mil4 circ mil5 circ mil6 circ mil7 circ mil8 circ mil9 circ mil10 circ mil11 circ mil12 circ mil13 circ mil14 circ mil15 circ mil16 circ mil17 circ mil18 circ mil19 circ mil20 circ mil21 circ mil22 circ mil23 circ mil24 circ mil25 circ mil26 circ mil27 circ mil28 circ mil29 circ mil30 circ mil31 circ mil32 circ mil33 circ mil34 circ mil35 circ mil36 circ mil37 circ mil38 circ mil39 circ mil40 circ mil41 circ mil42 circ mil43 circ mil44 circ mil45 circ mil46 circ mil47 circ mil48 circ mil49 circ mil50 circ mil51 circ mil52 circ mil53 circ mil54 circ mil55 circ mil56 circ mil57 circ mil58 circ mil59 circ mil60 circ mil61 circ mil62 circ mil63 circ mil64 circ mil65 circ mil66 circ mil67 circ mil68 circ mil69 circ mil70 circ mil71 circ mil72 circ mil73 circ mil74 circ mil75 circ mil76 circ mil77 circ mil78 circ mil79 circ mil80 circ mil81 circ mil82 circ mil83 circ mil84 circ mil85 circ mil86 circ mil87 circ mil88 circ mil89 circ mil90 circ mil91 circ mil92 circ mil93 circ mil94 circ mil95 circ mil96 circ mil97 circ mil98 circ mil99 circ mil100 circ mil
square millimeter0.0005067 mm20.0010134 mm20.0015201 mm20.0020268 mm20.0025335 mm20.0030402 mm20.0035470 mm20.0040537 mm20.0045604 mm20.0050671 mm20.0055738 mm20.0060805 mm20.0065872 mm20.0070939 mm20.0076006 mm20.0081073 mm20.0086140 mm20.0091207 mm20.0096274 mm20.0101342 mm20.0106409 mm20.0111476 mm20.0116543 mm20.0121610 mm20.0126677 mm20.0131744 mm20.0136811 mm20.0141878 mm20.0146945 mm20.0152012 mm20.0157079 mm20.0162146 mm20.0167213 mm20.0172281 mm20.0177348 mm20.0182415 mm20.0187482 mm20.0192549 mm20.0197616 mm20.0202683 mm20.0207750 mm20.0212817 mm20.0217884 mm20.0222951 mm20.0228018 mm20.0233085 mm20.0238153 mm20.0243220 mm20.0248287 mm20.0253354 mm20.0258421 mm20.0263488 mm20.0268555 mm20.0273622 mm20.0278689 mm20.0283756 mm20.0288823 mm20.0293890 mm20.0298957 mm20.0304025 mm20.0309092 mm20.0314159 mm20.0319226 mm20.0324293 mm20.0329360 mm20.0334427 mm20.0339494 mm20.0344561 mm20.0349628 mm20.0354695 mm20.0359762 mm20.0364829 mm20.0369896 mm20.0374964 mm20.0380031 mm20.0385098 mm20.0390165 mm20.0395232 mm20.0400299 mm20.0405366 mm20.0410433 mm20.0415500 mm20.0420567 mm20.0425634 mm20.0430701 mm20.0435768 mm20.0440836 mm20.0445903 mm20.0450970 mm20.0456037 mm20.0461104 mm20.0466171 mm20.0471238 mm20.0476305 mm20.0481372 mm20.0486439 mm20.0491506 mm20.0496573 mm20.0501640 mm20.0506708 mm2

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 unitSymbolDefinitionRelation to SI unitsUnit System
circular milcirc mil

π4 mil2

5.067075×10−10 m2


conversion table

circular milssquare millimeterscircular milssquare millimeters
1= 0.00050670756= 0.003040245
2= 0.0010134157= 0.0035469525
3= 0.00152012258= 0.00405366
4= 0.002026839= 0.0045603675
5= 0.002533537510= 0.005067075

Square millimetre or Square millimeter is a SI prefixes applied unit of area, symbol mm2, is a multiple of the of SI prefixes (milli) used with the metre.

Name of unitSymbolDefinitionRelation to SI unitsUnit System
square millimetermm2

≡ 1 mm × 1 mm ≡ 10-3 m × 10-3 m

= 10-6 m2

Metric system SI

conversion table

square millimeterscircular milssquare millimeterscircular mils
1= 1973.52515997896= 11841.150959873
2= 3947.05031995787= 13814.676119852
3= 5920.57547993668= 15788.201279831
4= 7894.10063991559= 17761.72643981
5= 9867.625799894410= 19735.251599789

Conversion table

circular milssquare millimeters
1= 0.0005067
1,973.5251600= 1


exactly equal
approximately equal to
=equal to
digitsindicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …)