Length Converter
Inch to Millimeter
Instantly convert inch (in) to millimeter (mm) with our free online converter.
in
Inch
mm
Millimeter
Result
1 in = 25.4 mm
Quick Convert
Conversion Formula
1 in = 25.4000 mm
How to Convert Inch to Millimeter
- 1Enter the value in inch (in) in the input field
- 2The converter automatically calculates the equivalent in millimeter (mm)
- 3Use the swap button (↔) to reverse the conversion direction
- 4Click "Copy" to copy the result to your clipboard
Frequently Asked Questions
How do I convert inch to millimeter?
To convert inch to millimeter, use the formula: 1 in = 25.4000 mm. Simply enter your value in the converter above for instant results.
What is the relationship between in and mm?
Inch (in) and Millimeter (mm) are both units of length. The conversion formula is: 1 in = 25.4000 mm.
Is this length converter accurate?
Yes, our converter uses precise conversion factors to ensure accurate results. The conversion is calculated using the standard formula: 1 in = 25.4000 mm.