To convert millimeters to inches, divide the number of millimeters by 25.4 to get the equivalent length in inches.
What is a millimeter?
The millimeter (mm) is a unit of length in the metric system, used globally for measurements. One millimeter equals one-thousandth of a meter (0.001 m).
The metric system is based on powers of ten and converts between different units, such as millimeters, centimeters, meters, and kilometers.
What is an Inch?
An inch (in) is a unit of length in the imperial system, used for measurements in the United States and some other countries.
In the metric system, 1 inch is defined as 25.4 millimeters. This definition provides an accurate conversion factor between inches and millimeters.
Conversion Formula
To convert millimeters (mm) to inches (in), you can use the following formula:
Inches = Millimeters ÷ 25.4
This formula divides the millimeters (mm) values by 25.4 to get the length in inches.
Example: 75mm ÷ 25.4 = 2.9527 in
What is Practical Uses?
Generally, in the following sectors, these units are mostly used:
- Engineering: Some countries use the metric system, while other countries use the imperial system. Therefore, companies need to convert units in both systems. Because manufacturing parts may need to fit in another country using a different measurement system.
- Daily Use: Unit conversion is beneficial for understanding the dimensions of objects, materials, or any home project.
- Science and Medicine: Professionals in this field need to convert between different units. Because they use scientific instruments that can be made with millimeters or inches.
Additional example values
Here are some additional mm to inches example conversions:
| Millimeter | Inch |
|---|---|
| 25 | 0.9843 |
| 50 | 1.9685 |
| 75 | 2.9528 |
| 100 | 3.9370 |
| 125 | 4.9213 |
| 150 | 5.9055 |
| 200 | 6.8898 |
| 225 | 7.8740 |
| 250 | 8.8583 |
| 275 | 9.8425 |
| 300 | 11.8110 |
These mm to inch conversions may be helpful to you for reference points when working with mm and inch units.
Metric To Imperial:
- Millimeters to Inches: 1 mm = 0.0393701 in
- Centimeters to Inches: 1 cm = 0.393701 in
- Meters to Inches: 1 m = 39.3701 in
- Kilometers to Inches: 1 km = 39370.1 in
- Millimeter to Foot: 1 mm = 0.00328084 ft
- Centimeter to Foot: 1 cm = 0.0328084 ft
- Meters to Feet: 1 m = 3.28084 feet
- Kilometer to Foot: 1 km = 3280.84 ft
- Millimeters to Yards: 1 mm = 0.00109361 yards
- Centimeters to Yards: 1 cm = 0.0109361 yards
- Meters to Yards: 1 m = 1.09361 yards
- Kilometers to Yards: 1 km = 1093.61 yards
- Millimeter to Mile: 1 mm = 6.2137e-7 miles
- Centimeters to Miles: 1 cm = 6.2137e-6 miles
- Meters to Miles: 1 meter = 0.000621371 miles
- Kilometers to Miles: 1 km = 0.621371 miles
Imperial to Metric:
- Inches to Millimeters: 1 Inch = 25.4 mm
- Feet to Centimeters: 1 foot = 30.48 cm
- Yards to Meters: 1 Yard = 0.9144 m
- Miles to Kilometers: 1 mile = 1.60934 km
- Inches to Millimeters: 1 Inch = 25.4 mm
- Feet to Millimeters: 1 foot = 304.8 mm
- Yards to Millimeters: 1 Yard = 914.4 mm
- Miles to Millimeters: 1 mile = 1609340 mm
- Inches to Centimeters: 1 Inch = 2.54 cm
- Feet to Centimeters: 1 foot = 30.48 cm
- Yards to Centimeters: 1 Yard = 91.44 cm
- Miles to Centimeters: 1 mile = 160934 cm
- Inches to Meters: 1 inch = 0.0254 m
- Feet to Meters: 1 foot = 0.3048 m
- Yards to Meters: 1 Yard = 0.9144 m
- Miles to Meters: 1 mile = 1609.34 m
The metric system, which originated in France, provides decimal-based units, while the imperial system is rooted in the British Empire. Read more about Metric and Imperial on Wikipedia.