Inch to Millimeter Converter
25.4 millimeters
How to Convert Inches to Millimeters
Converting inches to millimeters is a common task in engineering, construction, and everyday measurements. The conversion uses a simple multiplication formula:
Millimeters = Inches × 25.4
Quick Facts About the Conversion
1 inch equals exactly 25.4 millimeters. This conversion factor is standardized internationally and is used in all precise measurements. Some common conversions:
- 1 inch = 25.4 millimeters
- ½ inch = 12.7 millimeters
- ¼ inch = 6.35 millimeters
Common Applications
This conversion is frequently used in:
- Engineering and manufacturing
- Construction and woodworking
- International trade and commerce
- 3D printing and design