Convert Inches (in) to Millimeters (mm)
Converting inches to millimeters is essential for various applications, from construction to cooking. The conversion factor is straightforward: 1 inch equals 25.4 millimeters. Use this tool to make precise measurements effortlessly.
≈ 25 13/32 mm
Conversion Formula
Reverse: in = mm × 0.0393701
Conversion Examples
Inch to Millimeter Table
| Inch (in) | Millimeter (mm) | Fraction |
|---|---|---|
| 1 | 25.4 | 25 13/32 |
| 2 | 50.8 | 50 51/64 |
| 3 | 76.2 | 76 13/64 |
| 4 | 101.6 | 101 19/32 |
| 5 | 127 | — |
| 6 | 152.4 | 152 13/32 |
| 7 | 177.8 | 177 51/64 |
| 8 | 203.2 | 203 13/64 |
| 9 | 228.6 | 228 19/32 |
| 10 | 254 | — |
| 11 | 279.4 | 279 13/32 |
| 12 | 304.8 | 304 51/64 |
| 13 | 330.2 | 330 13/64 |
| 14 | 355.6 | 355 19/32 |
| 15 | 381 | — |
| 16 | 406.4 | 406 13/32 |
| 17 | 431.8 | 431 51/64 |
| 18 | 457.2 | 457 13/64 |
| 19 | 482.6 | 482 19/32 |
| 20 | 508 | — |
Unit Definitions
What is a Inch (in)?
An inch (in) is a unit of length in the imperial system, commonly used in the United States and the United Kingdom.
History
The inch originated from the ancient Romans, who defined it as the width of a man's thumb. Over time, it has been standardized to 2.54 centimeters.
Current Use
Inches are widely used in various applications, including engineering, manufacturing, and everyday measurements.
Learn more about InchWhat is a Millimeter (mm)?
A millimeter (mm) is a metric unit of length equal to one-thousandth of a meter.
History
The millimeter is derived from the meter, which was established in the late 18th century during the French Revolution as part of the metric system.
Current Use
Millimeters are commonly used in science, engineering, and manufacturing, particularly in fields that require precise measurements.
Learn more about Millimeter