Convert 1 Micrometer to Millimeter

1 μm (micrometer) is equal to 0.001 mm (millimeter). To convert from micrometer to millimeter, multiply by 0.001 or divide by 1,000.

• 1 μm × 0.001 = 0.001 mm
• 1 μm ÷ 1000 = 0.001 mm