Convert Circular Inch (circ in) to Plaza (plaza) instantly.
About these units
Circular Inch (circ in)
A circular inch represents the area of a circle with a diameter of exactly one inch. This yields an area of approximately 0.7854 square inches. It is sometimes used in engineering, especially in the sizing of pipes, hydraulic fittings, and certain mechanical components where circular cross-sections dominate. While not as widespread as the square inch, the circular inch offers a more direct representation of the actual shape of round components, reducing the need for manual geometric conversion.
Plaza (plaza)
A plaza is a traditional Spanish area unit, historically used in various regions of Latin America and Spain. Its value varied widely by locality—commonly ranging between 2,700 and 3,000 square meters—depending on the colonial or municipal standards in effect at the time. The plaza's origin is linked to urban planning under Spanish colonial rule. Town centers in Spanish America were often designed around a central plaza, and surrounding parcels were measured using plaza-based units, embedding the measurement into the cultural fabric of settlement. In agricultural contexts, plazas were sometimes used to define modest landholdings such as gardens, homestead plots, or small fields. While largely replaced by metric units today, the plaza remains significant in historical cartography, land deeds, and anthropological studies of Iberian and colonial town development. It stands as a reminder that measurements often evolve out of cultural-practical needs rather than pure geometric abstraction.