1 in = 25.4 mm
Exactly 25.4 millimeters per inch.
| in | mm |
|---|---|
| 0.25 in | 6.35 mm |
| 0.5 in | 12.7 mm |
| 1 in | 25.4 mm |
| 2 in | 50.8 mm |
| 3 in | 76.2 mm |
| 6 in | 152.4 mm |
| 12 in | 304.8 mm |
| 36 in | 914.4 mm |
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