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Millimeters to micrometers

1 mm = 1,000 µm

⇄
micrometers (µm)1,000

Open in the converter →

Formula

Multiply the value in mm by 1,000 to get µm.

µm = mm × 1,000

Conversion table

millimeters (mm)micrometers (µm)
0.1100
0.5500
11,000
22,000
33,000
44,000
55,000
66,000
77,000
88,000
99,000
1010,000
1515,000
2020,000
2525,000
3030,000
4040,000
5050,000
7575,000
100100,000
250250,000
500500,000
1,0001,000,000

Frequently asked questions

How many µm are in 1 mm?

1 mm = 1,000 µm.

How do I convert mm to µm?

Multiply the value in mm by 1,000 to get µm. µm = mm × 1,000

What is 10 mm in µm?

10 mm = 10,000 µm.

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Updated November 9, 2026