Millimeter to Inches Calculator

Being a mathematics student, you must be aware of multiple units for measuring lengths. Length is one of those measurements that has more than 10 different units for its calculation including millimeters and inches. All those units can be interconverted using a specific relationship.

Here, you will be able to learn about millimeters to inches conversion on this page. This millimeter to inches calculator can also assist you in this conversion. Using this maths calculator, you can convert a length given in millimeters to inches within a few seconds. Let us show you how this conversion can be done manually or using this online calculator.

What is Millimeter?

A millimeter is a specific unit of length used to measure small-sized lengths. It is particularly used to measure the size of small cubes, geometrical figures, and other objects of such small sizes.

This particular length-measuring unit is based on the SI unit of length i.e. meter. We can also write the millimeter definition in terms of this base unit. The millimeter is the 1000th part of 1 meter which means 1 meter is equal to 1000 millimeters. This unit is represented by writing “mm” just beside the number showing the measurement.

What are Inches?

Another unit for measuring lengths of moderate sizes is an inch. This length-measuring unit doesn’t belong to the SI system of international. It is part of US customary units that are widely used in the Western part of the world.

Inches are used for measuring the lengths of moderate-sized objects. It is based on another Us customary unit that we call foot. The word inch has been derived from the Latin word “Uncia” which means the 12th part of the whole size. An inch is the 12th part of a foot due to which it is given this name. A measurement is shown in this unit by putting “in” beside the number showing the measurement.

What is the formula to convert millimeters to inches?

There is no formula to convert millimeters to inches. But we can memorize the relationship between these units to understand the conversion. Here is the relationship showing the connection between these units.

1 millimeter = 0.039 inches	


1 inch = 25.4 millimeters	

It means that an inch is a bigger unit than a millimeter and 1 inch is equal to around 25.4 millimeters. You can easily convert a measurement given in millimeters to inches using this relationship.

How to convert millimeters to inches?

For your better understanding, we have solved an example here explaining how to convert millimeters to inches.


Example 1:

Convert 2784 millimeters to inches.


As we know,

1 mm = 0.039 in	


2784 mm = 2784 x 0.039 in	
= 109.61 in	

Millimeter-to-Inch Conversion Table

Millimeters (mm) Inches (in)
1 0.039
5 0.197
10 0.394
20 0.787
50 1.969
100 3.937
200 7.874
500 19.69
1000 39.37

How to use the millimeter to inches calculator?

Calculator’s Bag has designed this online calculator finely with a simple interface. You can use it by following this single step.

  • Input the measurement given in millimeters in the first input box
  • This calculator will automatically convert and show that measurement in inches

FAQ | Millimeter to Inches Calculator

What size is 1 mm in inches?

As millimeter is a smaller unit than inches, that’s why, 1 mm is equal to 0.039 in.

How do you convert millimeters to inches?

To convert a measurement from millimeters to inches, we need to multiply the measurement by 0.039.

Is 20 mm the same as 1 inch?

No, 1 inch is equal to 25.4 mm.

What size is 8mm in inches?

When 8 mm is converted into inches, it comes out to be 0.315 inches.

How many millimeters to the inches?

When these units are interconverted, the following relationships are made between millimeters and inches.

1 millimeter = 0.039 inches	


1 inch = 25.4 millimeters