Millimeters to Inches Conversion

Enter Millimeter
Enter Inch

How to convert mm to inches?

1 Millimeter (mm) is equal to 0.0393701 inch. To convert mm to inches, multiply the mm value by 0.0393701 or divide by 25.4.

For example, to convert 3.5 mm to inches, divide 3.5 by 25.4, that makes 0.1378 inch in 3.5 mm.

1 Millimeter = 0.0393701 Inch

How to convert inches to mm?

1 Inch is equal to 25.4 millimeters (mm). To convert inches to mm, multiply the inch value by 25.4.

For example, to find out how many mm in a half inch, multiply 0.5 by 25.4, that makes 12.7 mm in a half inch.

1 Inch = 25.4 Millimeters

You may also use this length and distance units conversion calculator tool to convert between inches, millimeters and all other length and distance units.

What is Inch?

Inch is an imperial and United States Customary length unit. There are 25.4 mm in 1 inch. The symbol is "in".

What is Millimeter?

Millimeter (millimetre) is a metric system length unit. 1 Millimeter (mm) is equal to 0.0393701 inch. The symbol is "mm".

Create Conversion Table
Click "Create Table". Enter a "Start" value (5, 100 etc). Select an "Increment" value (0.01, 5 etc) and select "Accuracy" to round the result.