Photometry
noxtolx
Convert nox (nox) to lux (lx).
Factor1 nox = 0.001 lx
Converter
nox
Accepts numbers or expressions, e.g. 150 + 14.7
Result
lx
Rendered to 6 significant figures.
Formula
Formula
lx = nox × 0.001
Multiply any value in nox by 0.001 to obtain the value in lux.
Worked example
Convert 1000 nox to lx.
- 01Start with 1000 nox.
- 02Multiply by the conversion factor: 1000 × 0.001 = 1 lx.
Result1000 nox = 1 lx
Conversion table
| nox | lx |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 200 | 0.2 |
| 500 | 0.5 |
| 1000 | 1 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from nox to lx?
1 nox equals 0.001 lx. To convert, multiply the value in nox by 0.001.
How do I convert 1 nox to lx?
1 nox = 0.001 lx. For any value, multiply by 0.001.
How do I convert lx back to nox?
Divide by the same factor — or equivalently, multiply by 1000. So 1 lx = 1000 nox.
When would I need to convert nox to lux?
Illuminance conversions between nox and lx are used in lighting design, workplace safety assessments, and photographic exposure work. Lux is the SI standard for international codes; foot-candles remain common in US lighting specifications.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).