Circular mil

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circular mil is a small English unit of area and is primarily used to determine the cross-section of wires and cables. The Anglo-American measure is equal to the area of ​​a circle one mil in diameter, one thousandth of an inch (0.001 inch ).

  • 1 circular mil = 0.0005067 square millimeters = 5.067075 × 10 −4 square millimeters
  • 1 circular mil = π ⁄ 4 × 10 −6 square inches = 7.853982 × 10 −7 square inches
  • 1 circular mil = 0.7853982 square mil

The use of kcmil (= 1000 cmil) is also common with regard to larger cable thicknesses from 0000 AWG .

literature

  • Peter Kurzweil: The Vieweg unit lexicon. Vieweg, Braunschweig / Wiesbaden 2000, ISBN 978-3-528-06987-2 , pp. 77, 78.
  • Helmut Kahnt, Bernd Knorr: Old measures, coins and weights, a lexicon. Bibliographisches Institut Mannheim / Vienna / Zurich, 1987, ISBN 3-411-02148-9 , p. 54.