millimetre to micrometre
1 millimetre equals 1000 micrometre, and 1 micrometre equals 0.001 millimetre.
Conversion formula
μm = mm × 1000
To convert millimetre to micrometre, multiply the value by 1000.
Conversion table
| 1 mm | 1000 μm |
|---|---|
| 2 mm | 2000 μm |
| 5 mm | 5000 μm |
| 10 mm | 10000 μm |
| 25 mm | 25000 μm |
| 50 mm | 50000 μm |
| 100 mm | 100000 μm |
| 500 mm | 500000 μm |
| 1000 mm | 1000000 μm |
Reverse conversion table
| 1 μm | 0.001 mm |
|---|---|
| 2 μm | 0.002 mm |
| 5 μm | 0.005 mm |
| 10 μm | 0.01 mm |
| 25 μm | 0.025 mm |
| 50 μm | 0.05 mm |
| 100 μm | 0.1 mm |
| 500 μm | 0.5 mm |
| 1000 μm | 1 mm |
Key facts
| 1 millimetre | 1000 micrometre |
|---|---|
| 1 micrometre | 0.001 millimetre |
Frequently asked questions
How do I convert millimetre to micrometre?
Multiply the millimetre value by 1000 to get micrometre. For example, 10 millimetre = 10000 micrometre.
How do I convert micrometre back to millimetre?
Divide the micrometre value by 1000 (equivalently, multiply by 0.001) to get millimetre.
Reverse conversion
Printable A4 conversion cheat sheet — see the Downloads page