Millimeters to Micrometers Converter (mm to µm)

Formula

To convert millimeters to micrometers, multiply the value by 1000.

µm = mm × 1000

Example calculation

Convert 5 mm to µm:

5 mm × 1000 = 5000 µm

Conversion table

About the units

Millimeter (mm)

Common in engineering drawings, rainfall and small measurements in most countries. One thousandth of a metre.

Micrometer (µm)

Also called the micron; used for cell sizes, fibre diameters and precision machining. One millionth of a metre in the SI system.

Related conversions

• Reverse conversion: micrometers → millimeters
• millimeters → centimeters
• centimeters → millimeters
• millimeters → meters
• meters → millimeters
• millimeters → kilometers
• kilometers → millimeters
• millimeters → inches
• inches → millimeters

Popular values

• 1 mm → µm
• 2 mm → µm
• 3 mm → µm
• 4 mm → µm
• 5 mm → µm
• 6 mm → µm
• 7 mm → µm
• 8 mm → µm
• 9 mm → µm
• 10 mm → µm