Use this lux to phots converter to change a lux measurement into its phot equivalent. Enter a number in the calculator above and the result updates instantly.
Illumination conversions are useful for lighting design, workplace standards, photography, architecture, displays, and optical calculations.
What is a lux?
Lux (lx) is a illumination unit.
What is a phot?
Phot (ph) is a illumination unit.
Lux to Phots Converter formula
To convert lux to phots, use the formula below.
1 ph = 10,000 lx. This relationship is the conversion factor used by the calculator.
How to convert lux to phots
Start with the lux value, apply the formula, and round the result only after the calculation is complete.
Example: 10 lx = 0.001 ph.
- 1 lx = 0.0001 ph
- 10 lx = 0.001 ph
- 100 lx = 0.01 ph
Manual conversion steps
- Write down the value in lux.
- Use the conversion formula: phots = lux / 10,000.
- Calculate the result in phots.
- Round the answer to the number of decimal places you need.
For quick checking, the converter above performs the same calculation automatically.
Common lux to phots use cases
This conversion is useful in practical situations where measurements need to move between different unit systems or audiences.
- Convert lux to phots for lighting design, workplace illumination, photography, architecture, and optical calculations.
- Illumination conversions are useful when comparing lighting specifications across lux, foot-candles, and older photometric units.
Common mistakes when converting lux to phots
These are the most common issues to watch for when doing this conversion by hand.
- Do not mix up the direction of the conversion. lux to phots is not the same as phots to lux.
- Avoid rounding too early. Keep the full result during the calculation, then round the final answer.
Lux to Phots conversion table
| Lux | Phot |
|---|---|
| 1 lx | 0.0001 ph |
| 5 lx | 0.0005 ph |
| 10 lx | 0.001 ph |
| 25 lx | 0.0025 ph |
| 50 lx | 0.005 ph |
| 100 lx | 0.01 ph |
How to convert phots to lux
To reverse the conversion, switch the two units in the calculator or open the reverse conversion page: phots to lux.
Reversing the units is useful when you already have a value in phots and need the equivalent value in lux.
How to use this lux to phots converter
- Enter the number you want to convert in the value field.
- Confirm that the from unit is Lux and the to unit is Phot.
- Read the converted result in the result box.
- Use the copy button if you want to paste the answer elsewhere.
Related illumination conversions
More illumination converters
More from Lux
More to Phot
Popular illumination pages
FAQ
What is the formula for lux to phots?
The formula is: phots = lux / 10,000.
How do I convert lux to phots by hand?
Write down the value in lux, apply the formula, and round the final result in phots.
How accurate is this converter?
The converter uses standard conversion factors and shows rounded results for readability.
Can I reverse the conversion?
Yes. Use the swap button in the converter or open the related reverse conversion page.
Why do results sometimes have many decimal places?
Some unit conversions do not produce short decimal values. Keep more decimal places for technical work, and round the answer for everyday use.