Convert Township (township) to Square Mil (mil²) instantly.
About these units
Township (township)
A township, as used in the U.S. Public Land Survey System (PLSS), is an area equal to 36 square miles, arranged as a 6-mile × 6-mile square. It is a cornerstone unit of American land division, originating during the late 18th-century settlement of the American frontier. Townships standardized how land was surveyed and sold, allowing the federal government to systematically divide territory for settlement, homesteading, and revenue generation. They were subdivided into 36 sections, each one square mile in area. This grid-based system profoundly shaped American geography. Roads, property lines, agricultural fields, and county boundaries in much of the Midwest and West follow township geometry. Even today, PLSS townships remain legally relevant in land deeds, zoning regulations, and cadastral surveys.
Square Mil (mil²)
A square mil equals the area of a square one mil (0.001 inch) on each side, producing an area of one-millionth of a square inch. This tiny unit appears in microfabrication, thin-film manufacturing, and fine electronic component design. Engineers rely on mils and mil² for PCB trace design, wire bonding pads, and micro-mechanical parts. Despite modern efforts to shift toward metric units, mils remain deeply embedded in American electronics manufacturing due to legacy tooling and engineering standards.