Length and Area
μmtonm
Convert micrometres (μm) to nanometres (nm).
Factor1 μm = 1000 nm
Converter
μm
Accepts numbers or expressions, e.g. 150 + 14.7
Result
nm
Rendered to 6 significant figures.
Formula
Formula
nm = μm × 1000
Multiply any value in micrometres by 1000 to obtain the value in nanometres.
Worked example
Convert 1 μm to nm.
- 01Start with 1 μm.
- 02Multiply by the conversion factor: 1 × 1000 = 1000 nm.
Result1 μm = 1000 nm
Conversion table
| μm | nm |
|---|---|
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 20 | 20000 |
| 50 | 50000 |
| 100 | 1.0000e+5 |
| 200 | 2.0000e+5 |
| 500 | 5.0000e+5 |
| 1000 | 1.0000e+6 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from μm to nm?
1 μm equals 1000 nm. To convert, multiply the value in micrometres by 1000.
How do I convert 1 μm to nm?
1 μm = 1000 nm. For any value, multiply by 1000.
How do I convert nm back to μm?
Divide by the same factor — or equivalently, multiply by 0.001. So 1 nm = 0.001 μm.
When would I need to convert micrometre to nanometre?
Length conversions appear in piping, layout, and mechanical drawings — particularly when reconciling imperial fittings or instrument lengths with metric plant drawings.
Is the conversion exact?
Yes. Both μm and nm are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).