Convert Inches to Millimeters
Review the Table, or Convert Inches to Millimeters Using the Below Calculator
Looking to convert standard sizes to metric? Use our Inches to Millimeter calculator below, or use the reference table.
2L manufactures a wide range of standard and metric tool sizes. We keep 1,000s of tools in stock, ready to ship.
See all End Mills.
See all Hole Making, Countersinks, Thread Mill Tools.
See all Engraving Tools.
Convert Inches to Millimeters
Inches x 25.4 = Millimeters
Example: .002″ x 25.4 = .05 mm
Convert Millimeters to Inches
Millimeters ÷ 25.4 = Inches
Example: .05 mm ÷ 25.4 = .002″
| Inches to Millimeter Conversion* | |
|---|---|
| Inches | Millimeters |
| .002″ | .05 mm |
| .005″ | .12 mm |
| .010″ | .25 mm |
| .015″ | .38 mm |
| .020″ | .50 mm |
| .025″ | .64 mm |
| .030″ | .76 mm |
| .035″ | .89 mm |
| .040″ | 1 mm |
| .050″ | 1.27 mm |
| .060″ | 1.5 mm |
| .080″ | 2 mm |
| .090″ | 2.28 mm |
| .100″ | 2.54 mm |
| .118″ | 3 mm |
| .125″ | 3.18 mm |
| .157″ | 4 mm |
| .1719″ | 4.36 mm |
| .1875″ | 4.76 mm |
| .200″ | 5 mm |
| .217″ | 5.5 mm |
| .236″ | 6 mm |
| .250″ | 6.35 mm |
| .375″ | 9.5 mm |
| .394″ | 10 mm |
| .500″ | 12.7 mm |
| .5625″ | 14.29 mm |
| .750″ | 19 mm |
| .757″ | 20 mm |
| 1.0″ | 25.4 mm |
| 1.97″ | 50 mm |
| 2.0″ | 51 mm |
| 2.95″ | 75 mm |
| 3.0″ | 76 mm |
| 4.5″ | 114 mm |
| 6.5″ | 165 mm |
| * Calculations are rounded and are for general reference only. Recalculate for exact conversions as needed. | |