Micrometres to nanometres – convert µm to nm
Convert micrometres to nanometres (µm to nm) to zoom in from micro-scale dimensions to nano-scale detail. Ideal for optics, semiconductor fabrication, thin films, biology and ultra-fine features.
Open the interactive µm → nm converter:
Use main converter (µm → nm) or switch to nm → µmThe length converter also supports mm, cm, m, km, inches, feet, yards and miles for larger-scale work.
Quick reference: µm to nm
One micrometre is exactly 1,000 nanometres. That means: nm = µm × 1,000. Example conversions:
| Micrometres (µm) | Nanometres (nm) |
|---|---|
| 0.1 µm | 100 nm |
| 0.5 µm | 500 nm |
| 1 µm | 1,000 nm |
| 2 µm | 2,000 nm |
| 5 µm | 5,000 nm |
| 10 µm | 10,000 nm |
| 50 µm | 50,000 nm |
Why convert micrometres to nanometres?
µm to nm is useful when you:
- Describe optical wavelengths, film thicknesses or feature sizes in nanometres.
- Translate micro-scale measurements into the nano domain for research papers.
- Compare microscope or AFM outputs with semiconductor design rules.
- Teach how SI prefixes step down from micro- to nano-scale by factors of 1,000.
Other length converters on this site
All nano–micro–milli conversions on the homepage follow exact SI powers of ten, so values stay consistent as you move between nm, µm, mm and m.
Page last updated: 4 December 2025.