Millimeter (mm) to Inch (in) Conversion
Convert millimeter (mm) to inch (in) with precision. Enter values and get instant conversions.
Length Converter
1 Millimeter (mm) = 0 Inch (in)
Common Conversions
About Millimeter (mm) to Inch (in) Conversion
Converting from Millimeter (mm) to Inch (in) is a common length conversion.
This online converter allows you to easily convert between millimeter (mm) and inch (in), providing instant results with high precision.
Millimeter (mm)
Definition: A millimeter (symbol: mm) is one-thousandth of a meter (0.001 m). It enables precise measurements in engineering, manufacturing, and scientific research.
History: Standardized in the 19th century alongside the meter, its utility grew with industrialization, where exact measurements became critical for machinery and interchangeable parts.
Current use: Essential in mechanical engineering (tolerances), meteorology (rainfall), and medicine (stent diameters). Also used in jewelry (gemstone sizes) and paper thickness (e.g., 120gsm paper ≈ 0.16 mm).
Inch (in)
Definition: An inch (symbol: in) is 1/12 of a foot or exactly 25.4 millimeters. It is deeply embedded in US manufacturing and daily life.
History: Derived from the Latin 'uncia' (1/12 of a Roman foot). Standardized internationally in 1959 to 25.4 mm, resolving variations between US and UK inches.
Current use: Prevails in US screen sizes (TVs, monitors), plumbing (pipe diameters), and tool calibration (e.g., wrench sizes). The UK uses inches informally for screen sizes and height.
Details
- From: Millimeter (mm)
- To: Inch (in)
- Formula: 1 mm = 0.0393700787 in
- Example: 25 mm = 0.9842519685 in
Millimeter (mm) to Inch (in) Conversion Table
| Millimeter (mm) | Inch (in) |
|---|---|
| 0.01 | 0.0003937008 |
| 0.1 | 0.0039370079 |
| 1 | 0.0393700787 |
| 2 | 0.0787401575 |
| 3 | 0.1181102362 |
| 5 | 0.1968503937 |
| 10 | 0.3937007874 |
| 20 | 0.7874015748 |
| 50 | 1.968503937 |
| 100 | 3.937007874 |
| 1000 | 39.3700787402 |