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  2. Millimetre - Wikipedia

    en.wikipedia.org/wiki/Millimetre

    The microwave is between 1 meter to 1 millimeter. The millimetre ( international spelling; SI unit symbol mm) or millimeter ( American spelling) is a unit of length in the International System of Units (SI), equal to one thousandth of a metre, which is the SI base unit of length. Therefore, there are one thousand millimetres in a metre.

  3. Caliber - Wikipedia

    en.wikipedia.org/wiki/Caliber

    10 mm: 0.400 in: 40 S&W, 10 mm Auto: 0.410: 10.4 mm 0.410 in ... The gauge of a shotgun refers to how many lead spheres, each with a diameter equal to that of the ...

  4. French catheter scale - Wikipedia

    en.wikipedia.org/wiki/French_catheter_scale

    The Charrière is measured by the ''outer'' diameter, and is defined as 1 Fr = 1/3 mm, and thus 1 mm = 3 Fr; therefore the diameter of a round catheter in millimetres can be determined by dividing the French size by 3. The French units roughly correspond to the outer circumference of the catheter (see table below).

  5. 10 mm caliber - Wikipedia

    en.wikipedia.org/wiki/10_mm_caliber

    10 mm caliber. This is a list of firearm cartridges which have bullets in the 10 millimetres (0.39 in) to 10.99 millimetres (0.433 in) caliber range. Length refers to the cartridge case length. OAL refers to the overall length of the cartridge. All measurements are in mm (in).

  6. List of United States standard crochet hook and knitting ...

    en.wikipedia.org/wiki/List_of_United_States...

    Standard knitting needle and crochet hook sizes. Metric diameter. US Knitting Needle Number. Corresponding Crochet Hook Size. 2.25 mm. 1. B-1. 2.75 mm. 2.

  7. Milliradian - Wikipedia

    en.wikipedia.org/wiki/Milliradian

    A common adjustment value in firearm sights is 1 cm at 100 meters which equals 10 mm / 100 m = 1 / 10 mrad. The true definition of a milliradian is based on a unit circle with a radius of one and an arc divided into 1,000 mrad per radian, hence 2,000 π or approximately 6,283.185 milliradians in one turn , and rifle scope adjustments and ...

  8. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    The centimetre ( SI symbol: cm) is a unit of length in the metric system equal to 10−2 metres ( 1 100 m = 0.01 m ). To help compare different orders of magnitude, this section lists lengths between 10 −2 m and 10 −1 m (1 cm and 1 dm). 1 cm – 10 millimetres. 1 cm – 0.39 inches. 1 cm – edge of a square of area 1 cm 2.

  9. Millimetre of mercury - Wikipedia

    en.wikipedia.org/wiki/Millimetre_of_mercury

    A millimetre of mercury is a manometric unit of pressure, formerly defined as the extra pressure generated by a column of mercury one millimetre high, and currently defined as exactly 133.322 387 415 pascals [1] or exactly 133.322 pascals. [2] It is denoted mmHg [3] or mm Hg. [4] [2]