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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. [2] The French units roughly correspond to the outer circumference of the catheter (see table below).
Countries using the metric system tend to use lines per centimeter (L/cm). In order to convert between L/in and L/cm the following formulas can be used: Lines per inch to lines per cm: L/cm = 0.394 x L/in i.e. 254 L/in = 100 L/cm Lines per cm to lines per inch: L/in = 2.54 x L/cm i.e. 100 L/cm = 254 L/in
Conversion of units is the conversion of the unit of measurement in which a quantity is expressed, typically through a multiplicative conversion factor that changes the unit without changing the quantity. This is also often loosely taken to include replacement of a quantity with a corresponding quantity that describes the same physical property ...
A circular milis a unitof area, equal to the area of a circlewith a diameterof one mil(one thousandth of an inch or 0.0254 mm). It corresponds to approximately 5.067×10−4 mm2. It is a unit intended for referring to the area of a wire with a circular cross section.
In the United States, Canada, and Mexico, ring sizes are specified using a numerical scale with 1⁄4 steps, where whole sizes differ by 0.032 inches (0.81 mm) of internal diameter, equivalent to 0.1005 inches (2.55 mm) of internal circumference. The relationship of this size ( ) to ISO 8653:2016 circumference ( ) is , while the relationship to ...
As well as 1 ⁄ 4 in (6.4 mm) tape, studio and multitrack machines use tape widths of 1 ⁄ 2, 1, and 2 inches (12.7, 25.4, and 50.8 mm), and at least one 3 inches (76.2 mm) [citation needed] machine was available for a time. There is also a 35 mm width, but this variety is more similar to the motion picture stock of the same width. It is ...
7.02 mm: Model railways (0) Exact O scale of 7 mm = 1 foot. 1:43: 7.088 mm: Die-cast cars: Still the most popular scale for die-cast cars worldwide, metric or otherwise. It originates from British O scale. 1:40: 0.3 in: 7.620 mm The very early models of the British Coronation Coach and a few other horse-drawn wagons were made in this scale.
3 by 4 to 6 + 1 ⁄ 2 by 8 + 3 ⁄ 4 inches (76 mm × 102 mm to 165 mm × 222 mm) Ranges can be specified in the first parameter although writing {{convert|3.2|-|7.5|ha}} would be clearer. Convert