Direct conversion
Inches To Mm Converter
Use this calculator to convert inch [in] to millimeter [mm] instantly.
Instant answer
1 inch [in] = 25.4 millimeter [mm].
Formula: 1 inch [in] = 25.4 millimeter [mm]
Choose units to see the conversion formula.
Inches To Mm formula
1 inch [in] = 25.4 millimeter [mm]
Example: 1 inch [in] equals 25.4 millimeter [mm].
Inches To Mm examples
1 inch [in] = 25.4 millimeter [mm]
2 inch [in] = 50.8 millimeter [mm]
5 inch [in] = 127 millimeter [mm]
10 inch [in] = 254 millimeter [mm]
Inches To Mm conversion table
| inch [in] | millimeter [mm] |
|---|---|
| 1 | 25.4 |
| 2 | 50.8 |
| 5 | 127 |
| 10 | 254 |
| 20 | 508 |
| 25 | 635 |
| 50 | 1270 |
| 100 | 2540 |
| 1000 | 25399.999999999996 |
Frequently asked questions
How do I convert inch to millimeter?
Use this formula: 1 inch [in] = 25.4 millimeter [mm] Enter your value in the calculator and the result updates instantly.
How many millimeter are in 1 inch?
1 inch [in] equals 25.4 millimeter [mm].
Can I reverse this conversion?
Yes. Use the swap button in the calculator or open the related reverse conversion link when it is listed on this page.