circular inch


circular inch
   , circular mil
(cmil)
   informal units of area. A circular inch is the area of a circle one inch1 in diameter, and a circular mil is the area of a circle one mil1 in diameter. A circle of diameter d has an area of pi·d2/4, so the circular inch is equal to approximately 0.785 398 square inches or 5.067 07 square centimeters, and the circular mil is equal to approximately 0.785 398 square mils or 506.707 square micrometers.

Dictionary of units of measurement. 2015.

Look at other dictionaries:

  • Circular Inch —   [ səːkjʊlə ɪntʃ, englisch] der, / es, Einheitenzeichen circ in, angloamerikanischer Flächeneinheit; sie ist gleich der Fläche eines Kreises mit dem Durchmesser 1 inch: 1 circ in = (π/4) in2 = 5,06707 cm2 …   Universal-Lexikon

  • circular inch — circular inch, a unit of square measure used to measure electric wire, equal to 0.785 square inch …   Useful english dictionary

  • circular mil —    see circular inch …   Dictionary of units of measurement

  • Inch —    INCH, a parish, in the county of Wigton, 2½ miles (E.) from Stranraer; containing, with the hamlets of Aird, Cairnryan, and Lochans, 2950 inhabitants. This place, which is of great antiquity, and distinguished for its lochs, appears to have… …   A Topographical dictionary of Scotland

  • Circular — is a basic geometric shape such as a Circle. Contents 1 Documents 2 Travel and transportation 3 Places …   Wikipedia

  • Circular mil — A circular mil is a unit of area, equal to the area of a circle with a diameter of one mil (one thousandth of an inch). It is a convenient unit for referring to the area of a wire with a circular cross section, because the area in circular mils… …   Wikipedia

  • circular mil — noun : a unit of area used especially for the cross section of wire equal to the area of a circle having a diameter of one mil and equivalent to 0.000000785 square inch * * * a unit used principally for measuring the cross sectional area of wires …   Useful english dictionary

  • Inch of water — Water Wa ter (w[add] t[ e]r), n. [AS. w[ae]ter; akin to OS. watar, OFries. wetir, weter, LG. & D. water, G. wasser, OHG. wazzar, Icel. vatn, Sw. vatten, Dan. vand, Goth. wat[=o], O. Slav. & Russ. voda, Gr. y dwr, Skr. udan water, ud to wet, and… …   The Collaborative International Dictionary of English

  • circular measure — noun measurement of angles in radians • Hypernyms: ↑system of measurement, ↑metric * * * noun : the measure of an angle in radians * * * a measurement system for circles: 1 circle = 360 degrees (4 quadrants); 1 quadrant = 90 degrees; 1 degree =… …   Useful english dictionary

  • circular headlamp — The older type of headlight which may be the larger one (7 inch) with both high and low beam or the smaller one (5.75 inch) dedicated to either low or high beam …   Dictionary of automotive terms


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