Millimeter to Micron Converter 2025 - mm to μm Calculator | Thiyagi

Millimeter to Micron Converter

Convert between millimeters and microns for precision engineering, manufacturing tolerances, and scientific measurements

1 mm = 1,000 μm
1 μm = 0.001 mm
Enter a value to see the conversion result

Length Conversion Reference

Millimeter ⇔ Micron
0.001 mm ⇔ 1 μm
0.01 mm ⇔ 10 μm
0.1 mm ⇔ 100 μm
1 mm ⇔ 1,000 μm
5 mm ⇔ 5,000 μm
10 mm ⇔ 10,000 μm

Engineering Measurement Examples

Manufacturing Tolerances:
• Precision machining: ±1-10 μm
• Standard machining: ±10-100 μm
• Sheet metal: ±0.1-0.5 mm
• 3D printing: ±50-200 μm
Material Thicknesses:
• Human hair: 50-100 μm
• Paper thickness: 70-180 μm
• Plastic film: 10-100 μm
• Metal foil: 5-50 μm
Surface Roughness:
• Mirror finish: 0.1-0.8 μm Ra
• Ground surface: 0.8-6.3 μm Ra
• Machined surface: 1.6-12.5 μm Ra
• Cast surface: 25-100 μm Ra

Length Units

  • Millimeter: 10⁻³ meter
  • Micron: 10⁻⁶ meter (micrometer)
  • Conversion: 1 mm = 1,000 μm
  • Symbol: μm (Greek letter mu)

Usage Tips

  • Critical for precision work
  • Standard in manufacturing
  • Used for tolerances
  • Essential for quality control

Applications

  • Manufacturing: Precision machining
  • Electronics: Component sizing
  • Materials: Thickness measurement
  • Quality: Surface analysis