Convert MM to inches

Several industries, including engineering, building, and manufacturing, frequently convert MM to inches. Even though both units of measurement are used to express length, they are not equivalent. Hence conversion is necessary to utilize the appropriate unit of measurement for a given activity.


Ways To Convert MM to inches

In this post, we will go over several ways to convert MM to Inches, including the fundamental formula, an internet converter, and a conversion chart.


Apply Fundamental Formula

The basic technique, which involves dividing the length in millimeters by 25.4, the number of millimeters in an inch, is the easiest approach to convert MM to Inches.

Follow these steps to apply this technique:

  • The length in millimeters that you want to convert to inches must be known.
  • By 25.4, divide the distance.
  • If necessary, decimalized the outcome to the closest hundredth.

To convert 150 millimeters to inches, for instance, divide 150 by 25.4, which results in 5.9055 inches. The result is 5.91 inches when it is rounded to the nearest hundredth.


Use Online converters

The conversion of MM to Inches can be done easily and quickly online. There are many online converting programs that all function similarly.

Do the actions listed below to use an online converter:

  • Search for “millimeters to inches converter” in your web browser.
  • From the search results, pick a converting tool.
  • Enter the length you want to convert in millimeters.
  • Choose “Convert” from the menu.
  • The outcome will be shown on the screen in inches.

Online converters come in handy when converting several lengths or needing a calculator or pen and paper. They are also useful for converting between other units of measurement, such as centimeters or meters.


Conversion Chart

Using a conversion table is yet another method for converting millimeters to inches. A table that includes millimeter values along with their corresponding inch values is called a conversion chart. These charts can be obtained online and in engineering, building, or manufacturing manuals.

  • Observe the actions listed below to use a conversion chart:
  • Find a table that converts between millimeters and inches.
  • The millimeter value that you want to recycle can be found here.
  • To determine the matching inch value, scan the chart.

You would locate the row that shows 100 millimeters and read through to the corresponding inch value, which is 3.937 inches, if you wanted to convert 100 MM to Inches using a conversion table, for instance.

When you need to convert several lengths and want to avoid manually calculating each value, conversion charts come in handy. They are also useful when you don’t have internet access or a calculator.


Frequently Asked Questions

What is the formula to convert mm to inches?

The formula to convert millimeters (mm) to inches is as follows:

1 mm = 0.0393701 inches

Therefore, to convert any measurement from millimeters to inches, you can multiply the value in millimeters by 0.0393701 or divide by 25.4 (since there are 25.4 millimeters in one inch). For example:

100 mm = 100 x 0.0393701 = 3.93701 inches

50 mm = 50 x 0.0393701 = 1.9685 inches

500 mm = 500 x 0.0393701 = 19.685 inches


What is 1 inch equal to in mm?

1 inch is equal to 25.4 millimeters (mm). This conversion factor is exact and is internationally recognized. Therefore, to convert any measurement from inches to millimeters, you can multiply the value in inches by 25.4. For example:

1 inch = 1 x 25.4 = 25.4 mm

2 inches = 2 x 25.4 = 50.8 mm

0.5 inches = 0.5 x 25.4 = 12.7 mm


Is 2 mm half an inch?

No, 2 mm is not equal to half an inch.

To convert 2 mm to inches, we can use the conversion factor of 1 mm = 0.0393701 inches:

2 mm = 2 x 0.0393701 inches

2 mm = 0.07874 inches

Therefore, 2 mm is not even close to being half an inch, which is equal to 0.5 inches.



In conclusion, there are various straightforward methods for converting millimeters to inches. Depending on your needs, you can utilize the fundamental formula, online converters, and conversion tables.

Although the fundamental formula necessitates some math, it is simple and may be completed with a pen and paper. On the other hand, online converters are quick and handy but need an internet connection. When you need to convert several lengths and want to avoid manually calculating each value, conversion charts come in handy.

Whatever approach you choose, it’s crucial to employ the right unit of measurement for the job. In professions requiring high levels of precision, utilizing or conflating millimeters and inches might result in expensive mistakes.

Thus, it is advised that you get familiar with units of measurement as well as their conversions.


MM to Inches Conversion Table

Millimeters (mm) Inches (“)
.8 mm to inches 0.0315 inches
1 mm to inches 0.0394 inches
1.5 mm to inches 0.0591 inches
10 mm to inches 0.3937 inches
100 mm to inches 3.937 inches
1000 mm to inches 39.37 inches
105 mm to inches 4.1339 inches
11 mm to inches 0.4331 inches
110 mm to inches 4.3307 inches
12 mm to inches 0.4724 inches
120 mm to inches 4.7244 inches
125 mm to inches 4.9213 inches
13 mm to inches 0.5118 inches
130 mm to inches 5.1181 inches
135 mm to inches 5.3149 inches
14 mm to inches 0.5512 inches
140 mm to inches 5.5118 inches
15 mm to inches 0.5906 inches
150 mm to inches 5.9055 inches
155 mm to inches 6.1024 inches
16 mm to inches 0.6299 inches
160 mm to inches 6.2992 inches
17 mm to inches 0.6693 inches
170 mm to inches 6.6929 inches
18 mm to inches 0.7087 inches
180 mm to inches 7.0866 inches
185 mm to inches 7.2835 inches
19 mm to inches 0.748 inches
2 mm to inches 0.0787 inches
2.5 mm to inches 0.0984 inches
20 mm to inches 0.7874 inches
200 mm to inches 7.874 inches
21 mm to inches 0.8268 inches
210 mm to inches 8.2677 inches
22 mm to inches 0.8661 inches
220 mm to inches 8.6614 inches
24 mm to inches 0.9449 inches
240 mm to inches 9.4488 inches
25 mm to inches 0.9843 inches
25.4 mm to inches 1 inch
250 mm to inches 9.8425 inches
26 mm to inches 1.0236 inches
28 mm to inches 1.1024 inches
3 mm to inches 0.1181 inches
3.5 mm to inches 0.1378 inches
30 mm to inches 1.1811 inches
300 mm to inches 11.811 inches
32 mm to inches 1.2598 inches
320 mm to inches 12.5984 inches
33 mm to inches 1.2992 inches
330 mm to inches 12.9921 inches
35 mm to inches 1.3779 inches
36 mm to inches 1.4173 inches
38 mm to inches 1.4961 inches
4 5 mm to inches 0.1772 inches
4 6 mm to inches 0.1811 inches
4 mm to inches 0.1575 inches
4.5 mm to inches 0.1772 inches
40 mm to inches 1.5748 inches
400 mm to inches 15.748 inches
42 mm to inches 1.6535 inches
44 mm to inches 1.73228 inches
45 mm to inches 1.77165 inches
450 mm to inches 17.7165 inches
48 mm to inches 1.88976 inches
5.5 mm to inches 0.21654 inches
50 mm to inches 1.9685 inches
500 mm to inches 19.685 inches
53 mm to inches 2.08661 inches
55 mm to inches 2.16535 inches
6 mm to inches 0.23622 inches
6.5 mm to inches 0.25591 inches
60 mm to inches 2.3622 inches
600 mm to inches 23.622 inches
65 mm to inches 2.55906 inches
7 mm to inches 0.27559 inches
70 mm to inches 2.75591 inches
75 mm to inches 2.95276 inches
8 mm to inches 0.31496 inches
8.0 mm to inches 0.315 inches
80 mm to inches 3.14961 inches
85 mm to inches 3.34646 inches
9 mm to inches 0.35433 inches
90 mm to inches 3.54331 inches