Convert inches to mm
Please provide values below to convert inch [in] to millimeter [mm].
mm to inches
Inch
An inch (in) is a unit of length in the imperial and United States customary measurement systems. One inch is equal to 25.4 millimeters or 2.54 centimeters.
Conversion Inch to Other Units:
- 1 inch = 25.4 millimeters (mm)
- 1 inch = 2.54 centimeters (cm)
- 1 inch = 0.0833 feet (ft)
- 1 inch = 0.0278 yards (yd)
Where is the Inch Used?
The inch is commonly used in the United States, Canada, and the United Kingdom for various measurements, including:
- Screen sizes (TVs, monitors, smartphones)
- Paper sizes (e.g., A4 paper margins)
- Clothing and shoe sizes
- Construction and carpentry (wood, pipes, nails)
- Engineering and manufacturing
What Can Be Measured in Inches?
- Heights of people (especially in the U.S.)
- Length of small objects (pencils, books, screens)
- Diameter of pipes, screws, and bolts
- Waist and clothing measurements
Millimeter
A millimeter (mm) is a unit of length in the metric system, commonly used for measuring small objects and precise dimensions. It is widely used in engineering, manufacturing, science, and everyday life.
Conversion Millimeter to Other Units:
- 1 millimeter = 0.03937 inches (in)
- 1 millimeter = 0.1 centimeters (cm)
- 1 millimeter = 0.001 meters (m)
- 1 millimeter = 1,000 micrometers (µm)
- 1 millimeter = 1,000,000 nanometers (nm)
Where is a Millimeter Used?
A millimeter (mm) is a very small unit of length, commonly used in fields requiring precision. It is especially useful for measuring objects that are too small for centimeters but too large for micrometers.
- Engineering & Manufacturing: Used for precise measurements of small components.
- Medicine: Used in medical tools and measurements (e.g., syringe needle sizes).
- Science & Microscopy: Helps measure small biological structures.
- Daily Life: Used in measuring jewelry, screws, phone thickness, etc.
Inch to Millimeter Conversion Table
| 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 |
| 50 in | 1270 mm |
| 100 in | 2540 mm |
| 1000 in | 25400 mm |
How to Convert Inch to Millimeter
1 in = 25.4 mm
1 mm = 0.0393700787 in
Example: convert 15 in to mm:
15 in = 15 × 25.4 mm = 381 mm