mm to µm
92 unitsResult1.000000e+3
1000µm
1 mm × 1000 = 1000 µm
Convert Millimeter to Micrometer (mm to µm)
1 millimeter = 1000 micrometers. Convert millimeters to micrometers instantly, with the exact factor, the formula and a reference table of common values.
Formula
micrometers = millimeters × 1000
mm to µm conversion table
| mm | µm |
|---|---|
| 1 mm | 1000 µm |
| 2 mm | 2000 µm |
| 3 mm | 3000 µm |
| 5 mm | 5000 µm |
| 10 mm | 10000 µm |
| 20 mm | 20000 µm |
| 50 mm | 50000 µm |
| 100 mm | 100000 µm |
| 250 mm | 250000 µm |
| 500 mm | 500000 µm |
| 1000 mm | 1000000 µm |
What is a millimeter?
A millimeter is one thousandth of a meter, and ten millimeters make one centimeter. It is the unit engineers, machinists, and builders reach for when a fraction of a centimeter would be too rough.
A credit card is about 0.8 mm thick and a standard pencil lead is 0.7 mm across. Rainfall, screw sizes, plywood thickness, and phone dimensions are all usually given in millimeters.
In writing, the millimeter is usually shortened to "mm". One millimeter is 0.001 meters, and that ratio is what every figure on this page is built from.