How to convert millimeters to micrometers
Formula: µm = mm × 1,000
Worked example: 10 mm → 10 × 1,000 = 10,000 µm
Millimeters to micrometers conversion chart
| Millimeters (mm) | Micrometers (µm) |
|---|---|
| 1 mm | 1,000 µm |
| 2 mm | 2,000 µm |
| 3 mm | 3,000 µm |
| 4 mm | 4,000 µm |
| 5 mm | 5,000 µm |
| 6 mm | 6,000 µm |
| 7 mm | 7,000 µm |
| 8 mm | 8,000 µm |
| 9 mm | 9,000 µm |
| 10 mm | 10,000 µm |
| 12 mm | 12,000 µm |
| 15 mm | 15,000 µm |
| 20 mm | 20,000 µm |
| 25 mm | 25,000 µm |
| 30 mm | 30,000 µm |
| 40 mm | 40,000 µm |
| 50 mm | 50,000 µm |
| 75 mm | 75,000 µm |
| 100 mm | 100,000 µm |
| 250 mm | 250,000 µm |
| 500 mm | 500,000 µm |
| 1,000 mm | 1,000,000 µm |
What is a millimeter?
The millimeter is one thousandth of a meter. It is the unit of engineering drawings, metric bolts and drill bits, camera focal lengths, jewelry and rainfall in most countries. In the US it shows up on tools, packaging and anything built to metric standards.
What is a micrometer?
The micrometer, often called a micron, is one millionth of a meter, or a thousandth of a millimeter. It is the scale of bacteria, fine dust and plastic wrap. Machinists use it for tight tolerances, and filter and particle sizes are rated in microns.