Phot to Lux Converter
Convert phot to lux instantly.
Standard illuminance units
lux 1000000
foot-candle 92903.13
millilux 1000000000
kilolux 1000
Fun comparisons
full moon nights 🌕~ 4000000
office lighting levels 🏢~ 2000
overcast day levels ☁️~ 1000
operating room levels 🏥~ 100
direct sunlight levels ☀️~ 10
How to convert phot to lux
Enter your illuminance in phot and get the equivalent in lux instantly. Key reference points: direct sunlight provides about 100,000 lux, a typical office is 300-500 lux (28-46 foot-candles), and a full moon provides about 0.25 lux.
Phot is a CGS illuminance unit still found in older scientific papers; lux is the modern SI equivalent required for all current lighting design standards and product specifications.
Need the opposite direction? Convert lux to phot just as easily, or explore all our illuminance conversions.
Common phot to lux conversions
| Phot (ph) | Lux (lx) |
|---|---|
| 1 | 10000 |
| 5 | 50000 |
| 10 | 1 |
| 25 | 25 |
| 50 | 5 |
| 100 | 1 |
| 500 | 5 |
| 1000 | 1 |
Frequently asked questions
1 phot equals 10000 lux.
Multiply by 10000. For example, 5 ph = 50000 lx.
1 phot equals exactly 10,000 lux.
1 lux equals 0.0001 phot.
100 phot equals 1 lux.