1 millimeter to micrometers
1 mm = 1,000 µm. Change the amount below, or read the formula and the reference table further down.
1 millimeter equals
micrometers
1 mm = 1,000 µm
The formula
Millimeters and micrometers both measure length from the same zero, so a single multiplier does the job.
µm = mm × 1,000
Going the other way? Convert micrometers to millimeters.
Millimeters to micrometers table
Values either side of 1 mm.
| Millimeters (mm) | Micrometers (µm) |
|---|---|
| -4 | -4,000 |
| -3.5 | -3,500 |
| -3 | -3,000 |
| -2.5 | -2,500 |
| -2 | -2,000 |
| -1.5 | -1,500 |
| -1 | -1,000 |
| -0.5 | -500 |
| 0 | 0 |
| 0.5 | 500 |
| 1 | 1,000 |
| 1.5 | 1,500 |
| 2 | 2,000 |
| 2.5 | 2,500 |
| 3 | 3,000 |
| 3.5 | 3,500 |
| 4 | 4,000 |
| 4.5 | 4,500 |
| 5 | 5,000 |
| 5.5 | 5,500 |
| 6 | 6,000 |
Questions people ask
- How many micrometers are in a millimeter?
- One millimeter equals 1,000 micrometers.
- How do I convert millimeters to micrometers by hand?
- Multiply the number of millimeters by 1,000. For a rough check, 1,000 is close enough for most everyday use.
- What is 1 millimeter in micrometers?
- 1 millimeter is 1,000 micrometers.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.