Convert Inch to Millimeter
Enter a value in Inch to see it instantly in Millimeter, or use the reverse converter below.
1 in = 25.4 mm
See this the other way: Millimeter to Inch
Inch
Definition: A US customary and imperial unit equal to exactly 25.4 millimeters, with 12 inches to a foot.
Current use: Used in the US for screen sizes, paper, tools, and rainfall, and in the UK for height.
Millimeter
Definition: One thousandth of a meter, the SI base unit of length.
Current use: Used for small, precise measurements in engineering, printing, and manufacturing tolerances.
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 |
| 5 in | 127 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
1 mm = 0.0393700787 in
Example: convert 1 in to mm:
1 in = 25.4 mm
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