Frequency use imperial to metric chart
1 inch (“) = 25.4 millimeter (mm.)
Inch (") Farction | Inch (") Decimal | Millimeter (mm) |
|---|---|---|
| ⅛” | 0.125 | 3.18mm |
| ¼” | 0.250 | 6.35mm |
| ⅜” | 0.375 | 9.53mm |
| ½” | 0.500 | 12.70mm |
| ⅝” | 0.625 | 15.88mm |
| ¾” | 0.750 | 19.05mm |
| ⅞” | 0.875 | 22.23mm |
| 1” | 1.000 | 25.40mm |
| 1 ¼” | 1.250 | 31.75mm |
| 1 ½” | 1.500 | 38.10mm |
| 1 ¾” | 1.750 | 44.45mm |
| 2” | 2.000 | 50.80mm |