## Circular Mils Calculator

The Circular Mils Calculator is a tool used to calculate the cross-sectional area of a wire or cable in circular mils. Circular mil is a unit of area commonly used in electrical and engineering applications to measure wire size.

### Formula

The formula for calculating circular mils is:

**Circular Mils = (Diameter in mils)²**

### Example

Let’s consider a wire with a diameter of 100 mils. Using the formula, we can calculate the cross-sectional area in circular mils as follows:

Circular Mils = (100 mils)² = 10,000 circular mils