What is an inch?
An inch, denoted by the symbol "In", is
the popular unit used for describing length in US and imperial
customary systems meant for measurement. An inch has been defined
to scale equivalent exactly to 25.4 millimetres in the year 1959.
When you take a look at 1 foot, there are a total of 12 inches in
one foot while a yard comprises of 36 inches. If you are finding
it difficult to estimate the size of any object, you can use our
inches to mm converter to estimate the exact size.
History:Inch is a term derived from Latin unit named
"Uncia" which is equal to 1/12th of Roman foot. In the past, inch
followed a rapid change in terms of set standards. Currently, the
definition has been based on International Yard. One among the
earliest definitions for inch was actually set on the basis of
barleycorns. Here, three dry barley grains of round shape placed
one after another was equal to an inch.
Current Use : The measuring unit "Inch" is widely used in
places such as Canada, United Kingdom, and the U.S. It is also
used in places such as Japan for electronic parts and similar
items such as display screen size. So if you are planning on
purchasing any electronics device and want a good idea of the
measurements, you can use the inch to millimetres converter for
What is a Millimetre?
A millimetre, symbolized by "mm", is the
unit for length used with the International SI Unit system. It is
denoted in metre as in 1/1000th of the metre.
History:The millimetre is actually a part of the prefix
that denotes 1/1000th base unit which is Metre. With time, the
definition for meter has vividly changed. The current description
for the same is distance travelled in a certain time. As seen
with most SI units, definition of meter changes with time. If you
have been struggling with the size of a small object, make sure
you use our inch to mm converter for the same.
Metric Conversions: Inch to Millimetre
We provide you a scalable tool for online
conversion for every type of units defined for measurement as per
international standards. You can find the most accurate inches to
millimetre converter here along with several major conversion
units available at your dispersal.
Basic Numbers for Conversion of Inch to mm
As per current standards,
- 1 inch = 0.039370 mm(25.4 mm)
- 1 mm =3/64 inches((0.0393700787 in)
This is the standard model and formula for Inch to millimetres conversion.
General places where we use inches as the unit for measuring lengths
- The use of inches can be traced back from the evidence in the
7th century where it was defined as the length of three
- In 1933, even the American Standard association also adopted
this value in their standard units of measurement of length.
- Even in the 12th century, people of Scotland use inch as a
unit of measurement. They defined a inch as equivalent to the
length of a thumb of a man.
- In 1959, U.S. and British signed a treaty so as to accept and
fix a common definition of an inch for the commonwealth
- In U.S., primarily all the road signs, and the quantities
related to distance and speed are being measured using the inches
as the unit of length.
Things measured in Millimetres
There are several things that can easily be measured with millimetres as the unit. This includes:
- Paper Clips
- Eraser Width
- Eraser Length
- Pencil Lead Length
- Length & Width of household battery
However, keep in mind the fact that
millimetre is mostly used for measurement of precisely small
subjects. So, when opting for conversion tools for inch to mm,
you can use our highly accurate tool for better results.
How to use the above tool for easy conversion of Inches to millimeters?
Follow the given steps for easy and quick conversion of any quantity from inch to mm.
- Just open the tool and put the value in the box below mm whose
value you need to convert inches to mm.
- Ones you have input the value then just click on the convert
tab to let the tool run a set of instructions on to the input
value to get the desired results.
- The final quantity displayed under the calculation tab is the
- You can directly use the displayed value as and wherever
required by you.