Inch to Millimeter
1 Inch = 25.4 Millimeter
Conversion Formula
To convert Inch to Millimeter, multiply the value by 25.4.
Inch × 25.4 = Millimeter
Quick Reference
| in | mm |
|---|---|
| 1 | 25.4 |
| 5 | 127 |
| 10 | 254 |
| 25 | 635 |
| 50 | 1270 |
| 100 | 2540 |
| 500 | 12700 |
| 1000 | 25400 |
What is Inch?
The inch (symbol: in) is a unit of length in the British imperial and United States customary systems of measurement.
Since 1959, the inch has been defined as exactly 25.4 millimeters. There are 12 inches in a foot and 36 inches in a yard.
Common Uses
The inch is commonly used in the United States, Canada, and the United Kingdom for measuring smaller distances and dimensions, such as screen sizes (television and computer monitors), tool sizes, and construction measurements.
What is Millimeter?
The millimeter (symbol: mm) is a unit of length in the International System of Units (SI).
It is a metric unit that is equal to one-thousandth of a meter (0.001 m). It is commonly used for very small distances or thickness, such as the thickness of a credit card or the diameter of a small wire.
Common Uses
The millimeter is widely used in engineering, manufacturing, and design where precision is required. It is also the standard unit for measuring rainfall in many countries.
How many millimeter are in a inch?
There are 25.4 millimeter in 1 inch.