Photometry
lxtoklx
Convert lux (lx) to kilolux (klx).
Factor1 lx = 0.001 klx
Converter
lx
Accepts numbers or expressions, e.g. 150 + 14.7
Result
klx
Rendered to 6 significant figures.
Formula
Formula
klx = lx × 0.001
Multiply any value in lux by 0.001 to obtain the value in kilolux.
Worked example
Convert 50000 lx to klx.
- 01Start with 50000 lx.
- 02Multiply by the conversion factor: 50000 × 0.001 = 50 klx.
Result50000 lx = 50 klx
Conversion table
| lx | klx |
|---|---|
| 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 lx to klx?
1 lx equals 0.001 klx. To convert, multiply the value in lux by 0.001.
How do I convert 1 lx to klx?
1 lx = 0.001 klx. For any value, multiply by 0.001.
How do I convert klx back to lx?
Divide by the same factor — or equivalently, multiply by 1000. So 1 klx = 1000 lx.
When would I need to convert lux to kilolux?
Illuminance conversions between lx and klx 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).