en.wikipedia.org/wiki/Diameter_tape

To **measure** the **diameter** of a tree, the **diameter** tape (**diameter** side facing user)
is wrapped around the tree, in the plane perpendicular to the axis of the trunk at
4.5 feet (1.4 m) above ground (or 4.27 feet (1.30 m), depending on the location) .
Where the number "0" aligns with the rest of ...

www.wikihow.com/Calculate-the-Diameter-of-a-Circle

Calculating a circle's **diameter** is easy if you know any of the other dimensions of
the circle: the radius, the circumference, or the area. It's also ... This goes back to
manipulating the formula for finding the area of a circle, A = πr^{2}, to get the
**diameter**. ... **Measure** it using a ruler, or for greater accuracy, a pair of digital
calipers.

www.keyence.com/ss/products/measure/measurement_library/measuring/out_diameter

Application SolutionsMeasuring Outer Diameter. Finding The Right Solution for
Outer **Diameter Measurements**. When looking for the best way to measure outer
diameter, there are a number of important factors to consider, including the shape
of the target, the type of measurement system, and the installation environment.

www.cmrp.com/blog/bending/how-to-check-the-diameter-of-a-metal-pipe-4.html

Aug 12, 2012 **...** Use the table below to cross reference the Actual OD (outside diameter) of the
pipe to the Nominal Pipe Size. For pipes larger than 12”, the Actual OD is the
same as the Nominal Pipe Size. OD Conversion Chart. Here are a few ways to
measure: 1. Direct **Diameter measurement** is the easiest. Measure at ...

www.hunker.com/13413991/how-to-use-a-measuring-tape-for-diameter

Jun 25, 2010 **...** If you need to find the **diameter** of a circle, many times you can do so with a tape
**measure**. A circle is defined as a curved line in which every point is equally
distant from the...

www.lasertech.com/Laser-Measure-Diameter.aspx

Definition of **Diameter**: a) the length of a straight line through the center of an
object. b) a straight line going through the center of a circle connecting two points
on the circumference. If you are at all familiar with the challenges of **measuring**
tree **diameter**, then you'll appreciate how unique the Criterion RD 1000 truly is.

sciencing.com/determine-diameter-circle-5743525.html

Apr 24, 2017 **...** You can find the **diameter** of a circle by using other **measurements** of the circle.
Before you begin calculating, be certain you understand the parts of a circle. The
**diameter** is the distance across the circle from a point on one side to a point on
the opposite side, passing through the exact middle point of the ...

www.amazon.com/Qwik-Caliper-Measuring-Outside-Diameter/dp/B0084NHFZ8

This handy, compact caliper is used to **measure** the outside **diameter** of any
round object up to 13" O.D., including pipes, tubes, discs, flanges and other
round objects. It consists of two blades (1"x7.5") joined at one end by a pivot and
clamping thumbnut. To use, clamp the blades so that the zero marks meet at the
vertex of ...