CONVERT MILLIMETER TO INCH
Please provide values below to convert millimeter [mm] to inch [in], or vice versa (coming soon).
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Millimeter
Definition: A millimeter (symbol: mm) is a unit of length in the International System of Units (SI). It is defined as one thousandth of a meter (1/1000 m), or one tenth of a centimeter.
History/Origin
The millimeter is derived from the meter, the SI base unit of length. The prefix "milli" denotes a factor of one thousandth (10⁻³). The metric system was developed during the French Revolution and the millimeter has been part of this system since its inception, providing a convenient unit for precise measurements.
Current Use
The millimeter is commonly used for precise measurements in engineering, manufacturing, and technical applications. It's the standard unit for measuring small objects, thicknesses, and precision parts in most countries that use the metric system. In everyday use, millimeters are often used to measure rainfall and small objects.
Inch
Definition: An inch (symbol: in) is a unit of length in the imperial and US customary systems of measurement. An inch is defined as exactly 25.4 millimeters, making the conversion between these units exact.
History/Origin
The inch has a long history dating back to ancient civilizations. The modern inch was standardized in 1959 when the international yard was defined, establishing the inch as exactly 25.4 millimeters. This standardization allows for precise conversions between metric and imperial systems.
Current Use
The inch remains widely used in the United States, Canada, and the United Kingdom for everyday measurements. It's particularly common in construction, manufacturing, and consumer products. Screen sizes for TVs, monitors, and phones are typically measured in inches even in countries that primarily use the metric system.
Millimeter to Inch Conversion Table
| Millimeter [mm] | Inch [in] |
|---|---|
| 0.01 mm | 0.0003937008 in |
| 0.1 mm | 0.0039370079 in |
| 1 mm | 0.0393700787 in |
| 2 mm | 0.0787401575 in |
| 3 mm | 0.1181102362 in |
| 5 mm | 0.1968503937 in |
| 10 mm | 0.3937007874 in |
| 20 mm | 0.7874015748 in |
| 50 mm | 1.968503937 in |
| 100 mm | 3.937007874 in |
| 1000 mm | 39.3700787402 in |
How to Convert Millimeter to Inch
1 mm = 0.0393700787 in
1 in = 25.4 mm
Example: Convert 50 mm to inches
50 mm = 50 ÷ 25.4 in = 1.968503937 in
To convert millimeters to inches, divide the millimeter value by 25.4. Since one inch is defined as exactly 25.4 millimeters, this conversion is mathematically exact. This is particularly useful in engineering and manufacturing where precision is critical.