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Inch to Millimeter Converter
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Inch to Millimeter Formula
Conversion explanation: Multiply the value in Inch by 25.4 to get the equivalent value in Millimeter.
Popular length unit conversions
What is Inch to Millimeter Converter
An inch to millimeter converter translates length measurements from inches (in) to millimeters (mm). Using the precise standard where 1 inch is equal to 25.4 millimeters, this utility ensures exact conversions for manufacturing, carpentry, and engineering tasks. For related calculations, you can also check our centimeter to inch conversion tool.
Definitions of Inch and Millimeter
What is Inch?
An inch is a unit of length in the US customary and imperial systems equal to one-twelfth of a foot. It is frequently used for screen sizes and small dimensions. For related unit metrics, you can use our inch to centimeter conversion tool.
What is Millimeter?
A millimeter is a unit of length in the metric system equal to one-thousandth of a meter. It is widely used for precise engineering and fine measurements. If you need to make other calculations, see our centimeter to millimeter conversion tool.
How to Convert Inch to Millimeter
To convert a value from inches to millimeters, multiply the value by the conversion multiplier:
Step-by-Step Example
Suppose you want to convert 5 inches to millimeters. Using the conversion steps:
- Identify the multiplier factor:
25.4. - Multiply 5 by the factor:
5 × 25.4 = 127. - Result: 5 inches is equal to 127 millimeters.
Inch to Millimeter Conversion Table
The table below provides quick reference conversions for common values from inches to millimeters:
| Inch [in] | Millimeter [mm] |
|---|---|
| 0.01 in | 0.254 mm |
| 0.1 in | 2.54 mm |
| 1 in | 25.4 mm |
| 2 in | 50.8 mm |
| 3 in | 76.2 mm |
| 4 in | 101.6 mm |
| 5 in | 127 mm |
| 6 in | 152.4 mm |
| 7 in | 177.8 mm |
| 8 in | 203.2 mm |
| 9 in | 228.6 mm |
| 10 in | 254 mm |
| 20 in | 508 mm |
| 30 in | 762 mm |
| 50 in | 1270 mm |
| 100 in | 2540 mm |
| 500 in | 12700 mm |
| 1000 in | 25400 mm |