Conversion of Millimeters to Inches

Conversion of Millimeters to Inches

Over the world, there are different ways to measure things. There are other units for each measurement, and each place we go to has its team of size. Today we will discuss the Conversion of Millimeters to Inches.

To keep up with these different units, we convert them into each other; some common conversions are as below:

  • Yards to inches
  • Yards to miles
  • Inches to yards
  • Miles to kilometers
  • Kilometers to yards
  • Miles to yards

To clear out the confusion that comes with all these measurement units, a new system was introduced that standardized the units and defined the basic unit according to which we now measure and according to which we convert the units.

In 1960, we were given the international system of units or more commonly known as the SI unit, to standardize a single company and make it a reference for all other conversions. This system gave us a standardized team to use.

Millimeter and inches are both units of measuring length; a millimeter is a standardized unit of measurement according to the SI unit the inch is mostly used in the USA.


A millimeter is a relatively smaller unit of displacement (that can be length or distance) according to the international system of team hence making it a standardized unit of measurement for removal for science, engineering, technology, and mathematics.


  • There are 10 mm in 1 cm.
  • There are 1000 mm in 1 m

Meter is the actual unit and millimeter is its variant and along with millimeter, here are some of its other variants:

  • A nanometer is a one billionth part of a meter.
  • A micrometer is a one-millionth part of a meter.
  • A millimeter is a one-thousandth part of a meter.
  • A centimeter is one-hundredth part of a meter.
  • A decimeter is a one-tenth part of a meter.
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It equals to the 36th part of a yard or the 12th part of afoot. This word was taken from the Latin word of “Uncia,” which is not present in other Germanic languages.

The inch is mostly used in:

  • United Kingdom
  • United States
  • Japan
  • Continental Europe (primarily just for the size of display screens)

Conversion of millimeters to inches:

Now, as we learned that the inch is equal to 2.54 cm and 1 cm has 10 mm, that means we can calculate that 1 inch is equal to 25.4 mm.

The conversion of millimeters to inches can be easily understood by the fraction method, which makes it simple and relatively easy to calculate without the help of any calculator or website.

The numerator and the denominator are the same lengths written in different units so that the fraction equals 1 for e.g., if 1 inch is the nominator, then 25.4 mm will be the denominator so that the resulting answer be 1.

Millimeter (MM) to Inch Conversion Chart.

 Millimeter [mm]  Inch [in]

0.01 -mm 0.0003937008 in

0.1 -mm 0.0039370079 in

1 -mm 0.0393700787 in

2 -mm 0.0787401575 in

3 -mm 0.1181102362 in

5 -mm 0.1968503937 in

10 -mm 0.3937007874 in

20 -mm 0.7874015748 in

50 -mm 1.968503937 in

100 -mm 3.937007874 in

1000 -mm 39.3700787402 in

Now multiply this fraction with the length you want to measure.