Convert inches to mm
1 inch = 25.4 millimeters. Use the converter above to convert inches to millimeters.
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How to Convert Inches to Millimeters
To convert inches (in) to millimeters (mm), multiply the number of inches by 25.4. This conversion factor is based on the international standard that defines 1 inch as 25.4 millimeters.
Conversion Formula
millimeters = inches × 25.4
Inches to Millimeters Conversion Table
| inches | millimeters |
|---|---|
| 1 in | 25.4 mm |
| 2 in | 50.8 mm |
| 3 in | 76.2 mm |
| 4 in | 101.6 mm |
| 5 in | 127 mm |
| 10 in | 254 mm |
| 15 in | 381 mm |
| 20 in | 508 mm |
| 25 in | 635 mm |
| 50 in | 1270 mm |
| 75 in | 1905 mm |
| 100 in | 2540 mm |
| 250 in | 6350 mm |
| 500 in | 12700 mm |
| 1000 in | 25400 mm |
Popular Length Conversions
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