Inches to Millimeters
1 Inch = 25.4 Millimeters
25.4
About these units
Inches
The inch equals 1/12 of a foot, or exactly 2.54 centimeters, and is used for screen sizes, paper, and short measurements in the US and UK.
Millimeters
The millimeter is one-thousandth of a meter, used where precision matters such as engineering, rainfall, and screw sizes. A credit card is about 0.76 mm thick.
Conversion formula
To convert Inch to Millimeter, multiply the value by 25.4.
Quick reference
| Inches | Millimeters |
|---|---|
| 1 | 25.4 |
| 2 | 50.8 |
| 5 | 127 |
| 10 | 254 |
| 100 | 2,540 |
Frequently asked questions
- How many Millimeters are in one Inch?
- 1 Inch = 25.4 Millimeters.
- How many Inches are in one Millimeter?
- 1 Millimeter = 0.03937007874 Inches.