mil to inch Conversion

Created by Gabriela Diaz
Reviewed by Komal Rafay
Last updated: May 31, 2023

Simplify your calculations with this mil to inch conversion tool. The mil is an imperial unit used to measure small lengths, often in manufacturing, to measure the thickness of materials. In the following text, you'll learn how to convert mils to inches, how many mils are in an inch, and get some examples to help you along the way.

And if you're wondering, are mils the same as miles? 🤔 Here, you'll find the answer. Keep reading to find out!

How many mils are in an inch?

There are one thousand mils in an inch, 1000 mil = 1 in. A mil is a unit of measurement used in the imperial system that represents one-thousandth of an inch:

1 mil = (1 / 1000) in = 0.001 in

This is why it is also known as a thou (or a thousandth).

The mil measurement is commonly used in manufacturing and engineering to measure the thickness of materials and manufacturing tolerances.

How do I convert mils to inches?

To convert from mils to inches, follow these steps:

  1. Determine the value you want to convert in mils.

  2. Use the mils to inches conversion factor:

    1 mil = 0.001 in

  3. Multiply the measurement in mils by the conversion factor of 0.001 to get its equivalent in inches.

  4. The result is your measurement in inches.

For example, if you want to convert 60 mils to inches, simply multiply 60 by the mils to inches conversion factor:
60 mil x (0.001 in / mil) = 0.06 in

How to use the mil to inch converter

Using this mil to inch conversion tool couldn't be easier. To see how it works, let's use an example. Suppose you want to know how much 10 mil is in inches. Here's how to get the result:

  1. In the first row, input the measurement in mils. Suppose it to be 10 mils as an example.

  2. Instantly, the calculator will show you the result in inches. For our example, it’s 0.01 in.

  3. That's it! 😄

🙋 Since all of our calculators work in both directions, you can also use this tool as an inch to mil converter!

Explore more length converters

In case you found this mil to inch conversion tool helpful, you may also want to explore some of our other length conversion tools:


How thick is 20 mil in inches?

It's 0.02 inches. We used the mil-to-in conversion factor of 1 mil = 0.001 in to get this result. Then, by multiplying the measurement we want to convert, which is 20 mil, by this conversion factor, we get the 0.02 in result:

20 mil x (0.001 in/mil) = 0.02 in

Are mils the same as miles?

No, mils and miles are not the same. While they might look similar, these are different units of measurement used in the imperial system. Mils are used to measure small lengths, such as the thickness of materials, with one mil equaling 0.001 inches. Meanwhile, miles are used to measure larger distances in transportation, geography, and sports, with one mile equaling 5,280 feet, 63,360 inches, or 63,360,000 mils.

Gabriela Diaz
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