Online Calculator: Convert Mils to cmils, Inches, and mm

Use this free online conversion calculator to swiftly and accurately convert:

• Mils to cmils
• Mils to inches (in)
• Mils to mm

The calculator is based on the following formulas:

1. Converting Mils to Circular Mils (cmils) and Inches:
• 1 cmil = (length in mils)²
• 1 inch (in) = 1,000 mils
2. Converting Mils to mm:
• (Length in mils) x 0.0254

Worked Example:

Suppose the diameter of a wire is 240 mils (0.24 inches). The area of the wire based on its diameter in circular mils is calculated as follows:

• Area = (diameter of the wire in mils)² = 240² = 57,600 cmils or 57.6 kcmils.

In summary:

• 240 mils = 0.24 inches = 57,600 cmils = 57.6 kcmils.

Online Calculator: Convert Mils to cmils, Inches, and mm

Use the free online conversion calculator to quickly and accurately convert:

• mils to cmils
• mils to inches (in)
• mils to mm

The online calculator is based on the formula below.

Formula for converting mils to circular mils (cmils), inches and mm

This mils calculator above is based on the following conversions:

• For mils to cmils,  1 cmil  = (length in mils)² .
• 1 inch (in) = 1,000 mils
• For mils to inches, 1,000 mils = 1 inch
• For mils to mm, (length in mils) x 0.0254

Worked example

For example, if the diameter of a wire is 240 mils (0.24 inches), then the area of the wire based on its diameter in circular mils is (diameter of the wire in mils)² = 240² = 57,600 cmils or 57.6 kcmils.

i.e. 240 mils = 0.24 inches =57,600 cmils =57.6 kcmils

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