Mm, or better written as mm is the symbol used for millimeter. It is a commonly used unit of measurement. Millimeter is the unit of length and equals to one thousandth of a meter. Meter is the System International (SI) unit used for measuring the length of any object etc. Millimeter or mm is equivalent to a thousand micrometers and 1,000,000 nanometers.
Another generally accepted unit of length or measuring objects is “Inch”. It is a unit of length used in numerous systems. Imperial Units, United States Customary Units are two of those systems in which “inch” is used as a unit of length. United Kingdom, Canada and United States of America extensively use “inch” to measure lengths of various objects. A yard has thirty six inches in it, and a foot has 12 inches in it. Height of human beings is also measured in feet and inches.
Mm Vs Inches means comparing the two systems of measuring lengths, in order to discover which is better. An inch has 25.4 millimeters in it. This shows that inch has a larger value than millimeter. Mm Vs Inches shows that inch being a bigger quantity is to be used for objects bigger than the size of a half a finger, as millimeter is a more appropriate unit of length to measure objects smaller than half of a finger.
Millimeter comes in good use when one has to measure the size of small specimens in a laboratory; or it is widely used to write the size of objects while doing experiments with Vernier Calipers. Vernier Caliper is an instrument majorly used in Physics to measure the size or length or width of small, minute objects.
Inch is useful in order to measure the length of pieces of cloth or the lengths of dresses. Tailors or architects normally use this unit quite frequently as it is simple, easy to use and gives correct measurements.
Millimeter (mm) is not a very difficult unit to use, but as it a small unit of measuring length it is not used much by people in normal daily routine. Mm Vs Inches exhibits that inches is a regularly employed unit of finding length of any object because it is a bigger unit than millimeter, and objects in general daily routine are not as tiny as a millimeter. Hence, in mm Vs inches, inches is a slightly better unit due to its more often application.