Convert Square Yard (yd²) to Circular Mil (circ mil) instantly.
About these units
Square Yard (yd²)
A square yard equals 9 square feet or 0.836 m². Historically used in the British Empire and still used in the US and UK for certain materials, the square yard appears frequently in carpeting, turf, paving stones, and textiles. Its intermediate size makes it suitable for areas larger than a square foot but smaller than a square meter, giving it usefulness in construction and home improvement. Although square meters have replaced square yards in most official contexts, industries such as carpeting, sports field design, and gardening continue to use this practical measure.
Circular Mil (circ mil)
A circular mil is defined as the area of a circle with a diameter of exactly one mil. Because wires and cables have circular cross-sections, the circular mil has become a standard unit in electrical engineering for specifying conductor sizes. One circular mil simplifies calculations because area scales directly with the square of wire diameter without needing π in computations. For example, doubling a wire's diameter increases its circular-mil area fourfold. This makes circular mils extremely convenient for determining ampacity, resistance, and voltage drop in electrical conductors. Even though SI units are common elsewhere, the circular mil remains entrenched in North American electrical codes.