Convert Phot to Lambert - Accurate Light Conversion Calculator
Phot
Enter a value and select units to convert.
Phot Unit Table
A list of units symbol and data.
From phTo LAll conversion
1 ph3.141592653587727 L
2 ph6.283185307175454 L
3 ph9.424777960763182 L
4 ph12.566370614350909 L
5 ph15.707963267938636 L
6 ph18.849555921526363 L
7 ph21.99114857511409 L
8 ph25.132741228701818 L
9 ph28.274333882289543 L
10 ph31.415926535877272 L
Description

Phot (ph): CGS Unit of Illuminance

The phot is a unit of illuminance in the centimeter-gram-second (CGS) system, where one phot equals 10,000 lux. Although it is not commonly used in modern applications, the phot provides a historical reference point for high-intensity lighting measurements, particularly in scientific research and specialized fields.

While the SI unit lux has largely supplanted the phot, familiarity with this unit can be beneficial when interpreting older scientific literature or working within specific contexts where CGS units are still in use. Recognizing the conversion between phot and lux ensures accurate understanding and communication of illuminance values.

Lambert (L): Unit of Luminance for Diffuse Surfaces

The lambert is a non-SI unit of luminance used to measure the brightness of perfectly diffusing surfaces. One lambert equals 3,183.0988618 candelas per square meter. This unit is primarily utilized in photometry and radiometry to describe the luminance of surfaces that scatter light uniformly in all directions.

Understanding the lambert is important for professionals in fields such as lighting design, astronomy, and material science, where accurate measurements of diffuse reflectance are necessary. While not commonly used in everyday applications, the lambert provides valuable insights into the behavior of light on matte surfaces.

Complete list of conversion for Phot
Phot (ph)

1 Phot = 10000 Candela

Convert 2 phcd

1 Phot = 10000 Candlepower

Convert 2 phcp

1 Phot = 10000 Lumen

Convert 2 phlm

1 Phot = 10000 Lux

Convert 2 phlx

1 Phot = 929.0312990644655 Footcandle

Convert 2 phfc

1 Phot = 10000 Candela per square meter

Convert 2 phcd/m²

1 Phot = 10000 Nit

Convert 2 phnt

1 Phot = 1 Stilb

Convert 2 phsb

1 Phot = 3.141592653587727 Lambert

Convert 2 phL

1 Phot = 2918.635079290997 Footlambert

Convert 2 phfL

1 Phot = 10000 Lumen second

Convert 2 phlm·s

1 Phot = 10000 Lux second

Convert 2 phlx·s

1 Phot = 10000 Rayleigh

Convert 2 phR