Convert millimeter to micrometer
1 mm = 1,000 μm
1 mm = 1,000 μm
1 mm in every length unit
| Planck length | 6.1871e+31 lP |
| femtometer | 1,000,000,000,000 fm |
| picometer | 1,000,000,000 pm |
| bohr radius | 18,897,000 a0 |
| angstrom | 10,000,000 Å |
| nanometer | 1,000,000 nm |
| micrometer | 1,000 μm |
| thou | 39.37 thou |
| point | 2.8346 pt |
| millimeter | 1 mm |
| pica | 0.23622 pc |
| centimeter | 0.1 cm |
| inch | 0.03937 in |
| decimeter | 0.01 dm |
| hand | 0.0098425 hh |
| link | 0.004971 li |
| foot | 0.0032808 ft |
| US survey foot | 0.0032808 ftUS |
| yard | 0.0010936 yd |
| meter | 0.001 m |
| fathom | 0.00054681 ftm |
| rod | 0.00019884 rd |
| chain | 0.00004971 ch |
| cable length | 0.0000053996 cb |
| furlong | 0.000004971 fur |
| kilometer | 0.000001 km |
| mile | 6.2137e-07 mi |
| nautical mile | 5.3996e-07 nmi |
| league | 2.0712e-07 lea |
| megameter | 1.0000e-09 Mm |
| Earth radius | 1.5696e-10 REarth |
| light-second | 3.3356e-12 ls |
| lunar distance | 2.6015e-12 LD |
| solar radius | 1.4374e-12 Rsun |
| light-minute | 5.5594e-14 lmin |
| astronomical unit | 6.6846e-15 AU |
| light-year | 1.0570e-19 ly |
| parsec | 3.2408e-20 pc |
| kiloparsec | 3.2408e-23 kpc |
| megaparsec | 3.2408e-26 Mpc |
| gigaparsec | 3.2408e-29 Gpc |
How the conversion works
Multiply by 1,000 to go from millimeter to micrometer, or divide by it to go back. Every conversion on this site routes through the SI value (m) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? micrometer to millimeter — 1 μm = 0.001 mm.
millimeter to micrometer — common values
| 1 mm | 1,000 μm |
| 2 mm | 2,000 μm |
| 3 mm | 3,000 μm |
| 5 mm | 5,000 μm |
| 10 mm | 10,000 μm |
| 15 mm | 15,000 μm |
| 20 mm | 20,000 μm |
| 25 mm | 25,000 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 |
| 1000 mm | 1,000,000 μm |