Convert square mil to square inch

Please provide values below to convert square mil [mil^2] to square inch [in^2], or Convert square inch to square mil.

1 mil^2 = 1e-06 in^2. To convert square mil to square inch, multiply the value by 1e-06; to go the other way, divide by it (1 in^2 = 1000000 mil^2). Both units measure area and appear in everyday as well as technical calculations, so switching between them quickly is often useful.

Quick Reference

  • 1 mil^2 = 1e-06 in^2
  • 1 in^2 = 1000000 mil^2
  • 10 mil^2 = 1e-05 in^2
  • 100 mil^2 = 0.0001 in^2



How to Convert Square Mil to Square Inch

1 mil^2 = 1e-06 in^2

Example: convert 15 mil^2 to in^2:
15 mil^2 = 15 × 1e-06 in^2 = 1.5e-05 in^2


Square Mil to Square Inch Conversion Table

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

Square Mil

A square mil is a unit of area equal to the area of a square with sides measuring one mil (thousandth of an inch).

History/Origin

The square mil has been used primarily in engineering and manufacturing to measure very small areas, especially in fields like electronics and materials science, where precision at a microscopic scale is required.

Current Use

Today, the square mil is mainly used in the electronics industry to specify the cross-sectional area of wires and conductors, as well as in materials science for measuring tiny surface areas.


Square Inch

A square inch is a unit of area measurement equal to the area of a square with sides of one inch.

History/Origin

The square inch has been used historically in the imperial and US customary systems for measuring small areas, especially in engineering, manufacturing, and real estate, dating back to the adoption of the inch as a standard unit of length.

Current Use

Today, the square inch is still used in various fields such as printing, screen sizes, and material measurements, although the square meter is more common internationally. It remains a standard unit within the 'Area' converter in measurement tools and applications.


Frequently Asked Questions

What is 1 square mil in square inch?

1 square mil (mil^2) = 1e-06 square inch (in^2).

How do you convert square mil to square inch?

Multiply the square mil value by 1e-06. For example, 25 mil^2 × 1e-06 = 2.5e-05 in^2.

What is 10 square mil in square inch?

10 mil^2 = 1e-05 in^2.

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

The square inch is the larger unit: 1 mil^2 equals only 1e-06 in^2.