How to Convert Nanometres to Micrometres (nm to µm)
Length conversions come up when reading overseas furniture specs, cycling the Round Island Route in kilometres while a foreign app shows miles, or checking marine distances in the Singapore Strait in nautical miles. This guide shows how to convert nanometres into micrometres by hand, with examples and a quick-reference table.
The conversion
To convert nanometres to micrometres, multiply the value by 0.001. To go the other way, divide by the same number (or multiply by 1,000). For a quick estimate, multiply by about 0.001.
Micrometres = nanometres × 0.001
Worked examples
- 3 nm = 0.003 µm
- 12.5 nm = 0.0125 µm
- 75 nm = 0.075 µm
Nanometres to Micrometres table
| Nanometres | Micrometres |
|---|---|
| 1 nm | 0.001 µm |
| 2 nm | 0.002 µm |
| 5 nm | 0.005 µm |
| 10 nm | 0.01 µm |
| 20 nm | 0.02 µm |
| 25 nm | 0.025 µm |
| 50 nm | 0.05 µm |
| 100 nm | 0.1 µm |
| 250 nm | 0.25 µm |
| 500 nm | 0.5 µm |
| 1,000 nm | 1 µm |
Common questions
Is nm to µm exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Micrometres to Nanometres converter.
Mistakes to avoid
Forgetting squared and cubed units
Area and volume factors are the length factor squared or cubed, so 1 m² is about 10.76 sq ft, not 3.28.
Mixing similar-sounding units
US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.
Dropping the units
A bare number without a unit is easy to misread later. Always write the unit with the result.
Background
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
For any value, use the Nanometres to Micrometres Converter or browse all length converters.
Run your own numbers: Nanometres to Micrometres Converter