Illuminance
Browse Illuminance conversions1 phot = 10000 lux
This result has a permanent link you can bookmark or share.
Formula Summary
Result: 1 phot = 10000 lux
Formula: (1 x 10000) / 1
Rounding: Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision.
Real World Context
10000 lux is approximately:
- within the broad range of cloudy daylight
Unit Story
Phot
The phot is a CGS illuminance unit equal to 10,000 lux. It appears mainly in older scientific and technical references.
Lux
Lux measures how much visible light reaches a surface. One lux equals one lumen spread across one square meter.
How This Conversion Works
Phot and lux are both used for illuminance conversions. This page converts 1 phot into 10000 lux using the formula shown below.
Use this result for quick checks, comparisons, and everyday reference. For work that depends on exact precision, review the rounding setting and the assumption note before using the number.
The precision controls let you switch between a shorter result, the standard readable result, and scientific notation when the value is very large or very small.
Unit Notes
- 1 phot (ph) equals 10000 lux.
- lux (lx) is the base unit used for illuminance conversions.
Questions
How do you convert phot to lux?
This page converts phot to lux using this formula: (1 x 10000) / 1.
What is 1 phot in lux?
1 phot equals 10000 lux.
How many decimals does this converter show?
Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision. The precision buttons can also show a shorter result or scientific notation.
Equivalent Values
Nearby Values
Full Details
- Formula
- (1 x 10000) / 1
- Rounding
- Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision.
- Assumption
- Illuminance measures luminous flux arriving on a surface. It is not the same as total lumens or luminance. Real lighting levels vary with distance, angle, weather, fixtures, reflections, and measurement position.
