Millimeters to Inches Converter
Convert millimeters (mm) to inches (in). Type a number in either box and the result appears as you type.
Enter a number, for example 12.5
1 millimeter = 0.03937007874 inches
Formula: in = mm ÷ 25.4
How to convert millimeters to inches
1 millimeter = 0.03937007874 inches
To convert millimeters to inches, divide the value by 25.4.
Example: 5 mm ÷ 25.4 = 0.1968503937 in
Millimeters to Inches conversion table
| Millimeter (mm) | Inch (in) |
|---|---|
| 1 | 0.039370079 |
| 2 | 0.078740157 |
| 3 | 0.11811024 |
| 4 | 0.15748031 |
| 5 | 0.19685039 |
| 10 | 0.39370079 |
| 15 | 0.59055118 |
| 20 | 0.78740157 |
| 25 | 0.98425197 |
| 50 | 1.9685039 |
| 75 | 2.9527559 |
| 100 | 3.9370079 |
| 250 | 9.8425197 |
| 500 | 19.685039 |
| 1,000 | 39.370079 |
About millimeters and inches
Millimeter (mm)
One thousandth of a meter. Used for small, precise measurements, such as parts, jewelry and rainfall.
Inch (in)
Exactly 2.54 centimeters. Used in the United States, and worldwide for screen and wheel sizes.
Frequently asked questions
What is 1 mm in inches?
1 mm = 0.03937007874 in.
What is 1 in in millimeters?
1 in = 25.4 mm.
How do I convert millimeters to inches?
To convert millimeters to inches, divide the value by 25.4. 1 millimeter = 0.03937007874 inches.