# Inches to mm

Welcome to inches to mm, a website about converting the imperial or United States customary unit of length inch into the decimal unit of length millimeter.

No matter what exact terms you have entered in the search engine of your preference, here you can find all about inches to millimeters you ever wanted to know, including the formula, examples and our inch to mm converter.

If you have been asking yourself how many mm in an inch, then you have come to the right website, too. 🙂

The abbreviation for inches is in, and the symbol for inch is “, a double prime.

In turn, the abbreviation for millimeter is mm.

+
=
Reset

## Convert Inches to mm

To convert inch to mm you have to multiply the amount of inches with 25.4.

The inches to mm formula is [mm] = [in] x 25.4. In short:

1 inch = 25.4 mm
1 in = 25.4 mm
1″ = 25.4 mm

Here is an example of how to convert inches to mm.

Assumed you have seven inches and want to convert them into millimetres.

Multiply 7 by 25.4 to get 177.8. This is the corresponding height or length in millimeter.

As you can see the inch to mm conversion is pretty easy.

If you know the inch to millimeter formula all you need for in to mm is a calculator.

Using our inches to mm calculator below things are even easier.

Make sure to bookmark us in case you need to convert in to mm frequently.

## About our Inches to mm Calculator

To use our inch to mm converter at the top of this page enter the amount of feet, if any, in the first field, followed by the amount of inches in the second field.

To convert inches to mm again press the reset button.

At this time of writing our inches to mm calculator cannot handle fractional inch to mm, so you must enter integers or values separated by a decimal point.

However, you can find the common fractional inches to mm using the search field in the sidebar.

All these ” to mm calculations can be found there.

Now you have in to mm at your fingertips, and you already know how to convert inches to millimeters.

Read on if you want to know more about these units, and why we have created this site.

We have created this website to help Americans and other people not familiar with the SI units of length to convert inches to millimeter easily and accurately.

1 mm equals one thousandth of a meter, which is the International System of Units base unit of length.

Millimeter is the American spelling, whereas the international spelling would be “millimetre”.

In any case, the millimeter is always abbreviated as mm, lower case.

Below you can find the equivalences of one inch in other decimal or metrical units:

1″ = 2.54 m centimeter
1″ = 0.254 m decimeter
1″ = 0.0254 meter
1″ = 0.0000254 kilometer

As opposed to the decimal system of length, in one foot (the singular form of feet) there are dozen inches.

And one yard comprises of 3 feet. These are the most important things to know about inches and mm.

No matter if you need to transform dimensions of screws and tube fittings, or if you are working on electronic devices that have shipped over an ocean you now know the other unit’s length or height equivalence.

Our frequent conversions in this category include, for example:

On our page about mm to inches you not only find a converter and useful information, but we have also added some more details on feet and inches.

As an image is worth a thousand words we sum this article up as follows:

Here you can convert inches to feet and vice versa.