Inches To Millimeters Converter

Inch to Millimeter Conversion

1 Inch = 25.4 Millimeter

Convert between Inch and Millimeter with step-by-step calculations.

Unit Information

Inch (in)

A unit of length in the Imperial and US Customary systems.

System: Imperial

Millimeter (mm)

A metric unit of length equal to one thousandth of a meter.

System: SI

Conversion Process

This conversion uses Meter as the base unit. We'll first convert Inch to Meter, then convert from Meter to Millimeter.

Step 1: Convert from Inch to Meter

1 × 0.0254 = 0.0254

Result: 0.0254 Meter

Step 2: Convert from Meter to Millimeter

0.0254 × 1,000 = 25.4

Result: 25.4 Millimeter

Direct Conversion Factor

1 × 25.4 = 25.4

Direct conversion: 1 Inch = 25.4 Millimeter

How to Convert Inch to Millimeter

To convert from Inch to Millimeter, simply input the value in Inch, and the tool will calculate the equivalent value in Millimeter using accurate conversion rates. You can also reverse the process by entering a value in Millimeter to get the corresponding value in Inch.

Conversion Formula

Inch to MillimeterMillimeter = Inch × 25.4000
Millimeter to InchInch = Millimeter × 0.0393701

Conversion Tables

Inch to Millimeter

InchMillimeter
125.4
250.8
376.2
5127
10254
20508
30762
501270
1002540
2005080
3007620
50012700
100025400

Millimeter to Inch

MillimeterInch
10.03937
20.07874
30.11811
50.19685
100.3937
200.7874
301.1811
501.9685
1003.937
2007.874
30011.811
50019.685
100039.37