Convert Inch (US Survey) (in (US)) to Foot (US Survey) (ft (US)) instantly.
About these units
Inch (US Survey) (in (US))
The US Survey Inch is derived from the US survey foot, making it exactly 1/12 of the US survey foot (~2.540006 cm). It is used in precise surveying applications where small differences can accumulate over large distances. Historically, it ensured consistency in cadastral maps, railroad engineering, and construction projects, especially when reconciling legacy measurements with modern geodetic data. Though seldom used outside surveying, the US survey inch highlights the need for consistency and precision in civil engineering and mapping applications.
Foot (US Survey) (ft (US))
The US Survey Foot is a standardized version of the foot, defined as exactly 1200/3937 meters (~0.30480061 m). It was adopted to maintain continuity with older surveying records when converting to the metric system. Surveyors, engineers, and geographers in the United States used this unit for mapping, cadastral surveys, and infrastructure projects. Its slight difference from the international foot allows historical survey data to align accurately with modern geodetic coordinates. Although the international foot is now more common, the US survey foot remains relevant for interpreting historical survey data and legal property boundaries.