Photometry
phtoklx
Convert phots (ph) to kilolux (klx).
Factor1 ph = 10 klx
Converter
ph
Accepts numbers or expressions, e.g. 150 + 14.7
Result
klx
Rendered to 6 significant figures.
Formula
Formula
klx = ph × 10
Multiply any value in phots by 10 to obtain the value in kilolux.
Worked example
Convert 1 ph to klx.
- 01Start with 1 ph.
- 02Multiply by the conversion factor: 1 × 10 = 10 klx.
Result1 ph = 10 klx
Conversion table
| ph | klx |
|---|---|
| 1 | 10 |
| 2 | 20 |
| 5 | 50 |
| 10 | 100 |
| 20 | 200 |
| 50 | 500 |
| 100 | 1000 |
| 200 | 2000 |
| 500 | 5000 |
| 1000 | 10000 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from ph to klx?
1 ph equals 10 klx. To convert, multiply the value in phots by 10.
How do I convert 1 ph to klx?
1 ph = 10 klx. For any value, multiply by 10.
How do I convert klx back to ph?
Divide by the same factor — or equivalently, multiply by 0.1. So 1 klx = 0.1 ph.
When would I need to convert phot to kilolux?
Illuminance conversions between ph 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).