How to convert microinches to millimeters
1 microinch is equal to 0.0000254 millimeters, and 1 millimeter is equal to 39,370.07874 microinches. To convert, multiply by the conversion factor:
millimeters = microinches × 0.0000254
millimeters = microinches ÷ 39,370.07874Example: convert 15 µin to mm: 15 × 0.0000254 = 0.000381 mm.
Microinch to Millimeter conversion table
| Microinch (µin) | Millimeter (mm) |
|---|---|
| 0.01 µin | 2.54 × 10⁻⁷ mm |
| 0.1 µin | 0.00000254 mm |
| 1 µin | 0.0000254 mm |
| 2 µin | 0.0000508 mm |
| 3 µin | 0.0000762 mm |
| 5 µin | 0.000127 mm |
| 10 µin | 0.000254 mm |
| 20 µin | 0.000508 mm |
| 50 µin | 0.00127 mm |
| 100 µin | 0.00254 mm |
| 250 µin | 0.00635 mm |
| 500 µin | 0.0127 mm |
| 1,000 µin | 0.0254 mm |
About the microinch
A microinch is one millionth of an inch (25.4 nm). It's used to specify surface roughness in machining.
Symbol: µin · 1 µin = 2.54 × 10⁻⁸ m · Category: Imperial & US customary
About the millimeter
A millimeter is one thousandth of a meter. It's the standard unit in engineering drawings, manufacturing, rainfall and screen and paper sizes.
Symbol: mm · 1 mm = 0.001 m · Category: Metric (SI)