Millimeters to Inches
Convert millimeters to inches instantly. Enter a value in mm, get in, and use the formula, examples, and conversion table for quick checks.
How to convert mm to in
To convert a value from millimeters (mm) to inches (in), enter the number in the converter above. Use the swap control if you need the reverse direction.
x is the source value in mm; y is the result in in.
Popular conversions
Quick answers for common mm to in values are available from the related conversion pages.
Use the related tools section for fixed-value conversions and the reverse direction.
Common conversion table
Quick reference table for common mm to in values:
| mm | in |
|---|---|
| 1 | 0.03937 |
| 5 | 0.19685 |
| 10 | 0.393701 |
| 50 | 1.968504 |
| 100 | 3.937008 |
| 1,000 | 39.370079 |
About millimeters
Millimeter (mm) is a length unit.
About inches
Inch (in) — One international inch is exactly 2.54 centimeters.
Common uses: Inches are common for screen sizes, product dimensions, pipe diameters, and US height notation.
Frequently Asked Questions
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