Circle to Square Converter (Equivalent Square Size)

Enter the diameter of the circle, and the calculator will determine the equivalent square size based on the same area.

This is useful in machining when converting round stock into square stock or comparing material usage between different geometries.

Formula:

Circle area = π × (diameter / 2)²

Equivalent square side = √(circle area)

Example:

If the circle diameter is 4 inches, the equivalent square side is approximately 3.54 inches.

When to use this calculator:

Use this calculator when converting round stock dimensions into equivalent square dimensions.

Machining tip:

Helpful when evaluating material usage or switching between round and square stock in machining operations.