Inches to MM Calculator

1 Inch Is Equal To 25.40 MM

Inches to MM Conversions


MM (Millimeter)

1 Inches to MM


2 Inches to MM


3 Inches to MM


4 Inches to MM


5 Inches to MM


6 Inches to MM


7 Inches to MM


8 Inches to MM


9 Inches to MM


10 Inches to MM


11 Inches to MM


12 Inches to MM


13 Inches to MM


14 Inches to MM


15 Inches to MM


16 Inches to MM


17 Inches to MM


18 Inches to MM


19 Inches to MM


20 Inches to MM


How to Convert Inches to MM?

Converting from inches to millimeters is an easy process. You have to multiply the inch by 25.4 in order to convert it to mm. To convert 10 inches to millimeters, for example, you would multiply 10 by 25.4.

Therefore, 10 inches = 10 x 25.4 = 254 mm

These are a few commonly used measurements for 1 inch.

1 inch

0.083 feet

1 inch

2.54 cm

1 inch

0.0254 m

1 inch

0.028 yard

1 inch

6.45 sq. cm

Formula and Example: Inches to MM

The following formula can be used to perform the straightforward conversion from inches to millimeters:

MM = Inches X 25.4

Here are some examples of conversions from inches to millimeters.



10 Inches is equal to 10* 25.400

254.00 MM

20 Inches is equal to 20* 25.400

508.00 MM

50 Inches is equal to 50* 25.400

1270.00 MM

75 Inches is equal to 75* 25.400

1905.00 MM

100 Inches is equal to 100* 25.400

2540.00 MM

1000 Inches is equal to 1000* 25.400

25400.00 MM

About Inches

The inch is a widely used unit of measurement or length in many systems, such as US Customary Units, English Units, and Imperial Units. An inch's dimensions can differ between systems.

One inch is equivalent to one-twelfth of a foot and one-third of a yard. Moreover, 1 inch equals 25.4 mm and 2.54 cm in millimeters. An inch is represented by a double prime [“] or written as "in." 10 inches, for example, can be written as 10 in or 10".

The United States, the United Kingdom, Canada, Japan, India, and a few other nations use this prevalent unit of measurement on a regular basis.

History of Inches

Originally, the word "inch" came from the Roman word "Uncia," which translated to "twelfth" in English. On the other hand, the word thumb is where the name "inch" originates in other European languages. The lengths and widths of specific body parts, such as the finger, thumb, and foot, were used to measure various areas during this time since there were no standard units of measurement.

One Scottish inch, according to legend, is the width of a typical man's thumb at the base of his nail. This was stated by King David I of Scotland. However, King Edward II of England stated that "three grains of sound ripe barley taken out of the middle of the ear and laid end to end in a line" would equal one inch.  

Up until the most recent definition was put forth and approved by several nations over time, there were numerous such definitions of the inch in use. Canada adopted the definition of an inch in 1951, followed by the US in 1959, Australia in 1961, and the UK in 1963. It said that 25.4 mm, or 2.54 cm, is exactly one inch.

Based on one yard, inches can be defined as follows:

1 inch = 1/36 yard or 0.0278 yard

1 yard = 914.4 mm

Hence, 1 inch = 0.0278 x 914.4 = 25.4 mm

About MM

One common metric unit of measurement for small areas, objects, and distances is the millimeter. It is equivalent to 1/1000th of a meter and 1/10th of a centimeter and is a component of the International System of Units (SI units). This indicates that a meter is made up of 1000 millimeters, and a centimeter is made up of 10 millimeters. One millimeter is the size of the thin wire used in paper clips.

In drawings and specifications linked to engineering, this unit of measurement is frequently used. Because of this, engineering-specific rulers have 0.5 mm graduations in addition to the 1 mm graduations found on most standard rulers.

In other fields as well, the millimeter is widely used. For example, a millimeter is used in medicine to measure the size of tumours. A paper sheet's thickness is likewise expressed in millimeters. The thickness of the sheet used for printing is about 0.1 mm, whereas an ordinary sheet of paper is between 0.07 and 0.18 mm. Additionally, a standard pen nib's width is 0.6 mm.

Here are a few common mm conversions:

1 mm

0.039 inches

1 mm

0.1 cm

1 mm

0.001 m

1 mm

1000 micrometers

1 mm

0.0033 feet

1 mm

0.0011 yard

Difference between Inches and MM

Here are a few examples of how inches and millimeters differ.



Both the imperial and US customary systems use the inch as a unit of measurement for length.

One unit in the International System of Units (SI units) is the millimeter.

The inch is defined as 1/12th of a foot or 1/36th of a yard.

The millimeter is defined as 1/10th of a cm or 1/1000th of a meter.

1 inch = 25.4 mm

1 mm = 0.039 inches

The length and width of printer paper and business envelopes, the size of devices' screens, the dimensions of clothing and shoes, and other measurements are all measured in inches.

A millimeter can be used to measure the width of tumours, paper, pen nibs, paper pins, and many other objects.

The United States, the United Kingdom, and Canada are the main users of this unit of measurement. That is, nevertheless, fairly typical in India, Japan, and other nations.

With the exception of the United States, Liberia, and Myanmar, almost every country uses the millimeter, which is the unit of length in the metric system.

In India, it is customary to measure the area of houses, land plots, and other spaces in both millimeters and inches. Nonetheless, the United States, the United Kingdom, and Canada are the countries where inches are most commonly used, whereas the United Kingdom, India, Canada, Germany, Russia, Japan, and other metric-using nations use millimeters.

The easiest way to convert inches to millimeters is to use the IndexTap inches to millimeter calculator, which will provide accurate results in a matter of seconds. Some computations and conversions can be difficult, time-consuming, and confusing. On the other hand, using an online calculator allows you to quickly and accurately receive results. To convert an inch to millimeter, for instance, simply input the inch value into the calculator, and the corresponding millimeter value will appear there instantaneously. Therefore, you can use this online calculator with ease and avoid a lot of hassles whether you are buying, renting, or leasing a property.

Area Calculator (Converter)

A land area calculator is a useful tool for converting one unit to another. Land measurements vary across India. If you want to find the equivalent unit of the local term for the unit, the simplest method is to use a land calculator.

Logo | IndexTap

1203, 12th Floor, Lodha Supremus,

Saki Vihar Rd, Powai,

Mumbai, Maharashtra 400072

  • Facebook | IndexTap
  • Instagram | IndexTap
  • Twitter | IndexTap
  • Linkedin | IndexTap
  • Youtube News | IndexTap