Convert circular mil to circular inch

Please provide values below to convert circular mil [circ mil] to circular inch [circ in], or Convert circular inch to circular mil.

1 circ mil = 1e-06 circ in. To convert circular mil to circular inch, multiply the value by 1e-06; to go the other way, divide by it (1 circ in = 1000000 circ mil). Both units measure area and appear in everyday as well as technical calculations, so switching between them quickly is often useful.

Quick Reference

  • 1 circ mil = 1e-06 circ in
  • 1 circ in = 1000000 circ mil
  • 10 circ mil = 1e-05 circ in
  • 100 circ mil = 0.0001 circ in



How to Convert Circular Mil to Circular Inch

1 circ mil = 1e-06 circ in

Example: convert 15 circ mil to circ in:
15 circ mil = 15 × 1e-06 circ in = 1.5e-05 circ in


Circular Mil to Circular Inch Conversion Table

circular mil circular inch
1 circ mil 1e-06 circ in
2 circ mil 2e-06 circ in
3 circ mil 3e-06 circ in
5 circ mil 5e-06 circ in
10 circ mil 1e-05 circ in
20 circ mil 2e-05 circ in
50 circ mil 5e-05 circ in
100 circ mil 0.0001 circ in
500 circ mil 0.0005 circ in
1000 circ mil 0.001 circ in

Circular Mil

A circular mil is a unit of area used to measure the cross-sectional size of wires, representing the area of a circle with a diameter of one mil (one thousandth of an inch).

History/Origin

The circular mil originated in the electrical industry to specify wire sizes before the adoption of metric units. It has been a standard measurement in North America for wire gauge sizes for many decades.

Current Use

Circular mils are still used today in the electrical industry to specify wire cross-sectional areas, especially in North America, although metric units are increasingly common.


Circular Inch

A circular inch is a unit of area measurement representing the area of a circle with a diameter of one inch.

History/Origin

The circular inch originated as a specialized measurement in fields requiring precise circular area calculations, but it is not widely used in standard measurement systems and has limited historical adoption.

Current Use

Today, the circular inch is primarily used in niche applications such as engineering and manufacturing where circular area measurements are relevant, but it remains a rarely used unit outside specialized contexts.


Frequently Asked Questions

What is 1 circular mil in circular inch?

1 circular mil (circ mil) = 1e-06 circular inch (circ in).

How do you convert circular mil to circular inch?

Multiply the circular mil value by 1e-06. For example, 25 circ mil × 1e-06 = 2.5e-05 circ in.

What is 10 circular mil in circular inch?

10 circ mil = 1e-05 circ in.

Which unit is larger, the circular mil or the circular inch?

The circular inch is the larger unit: 1 circ mil equals only 1e-06 circ in.