Micrometers to Nanometers converter

To convert micrometers to nanometers, enter the value in the first field. The result in nanometers is calculated automatically using the exact conversion factor.

1 µm = 1000 nm
1 nm = 0.001 µm

Formula: nm = µm × 1000
µm = nm × 0.001

Definitions: 1 µm = 1 × 10^-6 m; 1 nm = 1 × 10^-9 m

The micrometer (µm), also called a micron, is one millionth of a meter. It is used for the thickness of thin films and fibers, for the size of bacteria, cells and dust particles, and for filter ratings (PM2.5 and PM10 count particles up to 2.5 and 10 µm).

The nanometer (nm) is one billionth of a meter. It is the unit for wavelengths of light (visible light spans roughly 400 to 700 nm), for features on semiconductor chips and for the size of viruses and molecules.

See the conversion table with commonly used values, handy for quick reference or study.