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The picometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: pm) or picometer (American spelling) is a unit of length in the metric system, equal to 1×10−12 m, or one trillionth ( 1 / 1000000000000 ) of a metre, which is the SI base unit of length.
A Cape foot is a unit of length defined as 1.0330 English feet (and equal to 12.396 English inches, or 0.31485557516 meters) found in documents of belts and diagrams relating to landed property.