MM to Inches Converter
Free MM to inches converter. Convert mm to inch instantly. Popular: 10mm to inches, 20mm to inches, 100mm to inches. Fast, accurate conversion tool.
MM to Inches Converter
Enter millimeters value and click Convert to get inches.
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Relationship Between Inches and Millimeters
The conversion between millimeters and inches is based on the exact relationship where 1 inch equals 25.4 millimeters in the metric system.
1" = 25.4 mm
Therefore,
1 mm = 1/25.4 inches
Therefore, to convert mm to inches, we need to divide the value in millimeters by 25.4.
For a 1 mm length unit,the equivalent length in inches is 1 mm = 0.0393701 inches.
Millimeters
What is a Millimeter (mm)?
A millimeter (symbol: mm) is a unit of length in the International System of Units (SI), equal to exactly 1/1000th of a meter. It is one of the most commonly used metric units for precise measurements.
Origin and Definition:
The millimeter gets its name from the metric prefix "milli-", meaning one thousandth. The current definition is based on the meter, which is defined as the distance light travels in 1/299,792,458th of a second. This ensures extreme accuracy in modern measurements.
Key Features:
- 1 millimeter = 0.001 meters
- 1 millimeter = 0.0393701 inches
- Widely used in engineering, manufacturing, and scientific applications
- Essential for precise measurements in technology and construction
Inch
What is an Inch (in)?
An inch (symbol: in) is a unit of length in the imperial and US customary systems, equal to exactly 25.4 millimeters. There are 12 inches in a foot and 36 inches in a yard.
Origin
The term "inch" comes from the Latin "uncia" (one-twelfth of a Roman foot). Early definitions were based on three barleycorns or the width of a human thumb.
Current Use
Inches are mainly used in the United States, Canada, and the United Kingdom, and for electronic components in Japan and other countries.
Millimeter to Inch Conversion Table
The conversion of millimeters to inches for certain values are provided below:
- Millimeters [mm]
- Inches [in]
- Inches ["]
- 1 mm
- 0.0394 in
- 1/32"
- 2 mm
- 0.0787 in
- 3/32"
- 3 mm
- 0.1181 in
- 1/8"
- 4 mm
- 0.1575 in
- 5/32"
- 5 mm
- 0.1969 in
- 3/16"
- 6 mm
- 0.2362 in
- 1/4"
- 7 mm
- 0.2756 in
- 9/32"
- 8 mm
- 0.3150 in
- 5/16"
- 9 mm
- 0.3543 in
- 11/32"
- 10 mm
- 0.3937 in
- 13/32"
- 20 mm
- 0.7874 in
- 25/32"
- 30 mm
- 1.1811 in
- 1 3/16"
- 40 mm
- 1.5748 in
- 1 9/16"
- 50 mm
- 1.9685 in
- 1 31/32"
- 60 mm
- 2.3622 in
- 2 3/8"
- 70 mm
- 2.7559 in
- 2 3/4"
- 80 mm
- 3.1496 in
- 3 5/32"
- 90 mm
- 3.5433 in
- 3 17/32"
- 100 mm
- 3.9370 in
- 3 15/16"
- 1000 mm
- 39.3701 in
- 39 3/8"
Conversion Calculators
