Phot
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Switch fc to ph
Phot Unit Table
A list of units symbol and data.
From phTo fcAll conversion
1 ph929.0312990644655 fc
2 ph1858.062598128931 fc
3 ph2787.0938971933965 fc
4 ph3716.125196257862 fc
5 ph4645.156495322328 fc
6 ph5574.187794386793 fc
7 ph6503.219093451258 fc
8 ph7432.250392515724 fc
9 ph8361.28169158019 fc
10 ph9290.312990644656 fc
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 Although it is not commonly used in modern applications, the phot provides a historical reference point for high-intensity lighting measurements, particularly in scientific research and specialized fields.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.

Footcandle (fc): Imperial Unit of Illuminance

The footcandle is a non-SI unit of illuminance used primarily in the United States. It is defined as the illuminance on a one-square-foot surface from a uniform source of light equivalent to one lumen. One footcandle equals approximately 10.764 lux. Despite the global shift towards SI units, the footcandle remains prevalent in certain industries and applications.

Understanding footcandles is important for professionals working in lighting design, architecture, and photography within regions that use imperial measurements. It allows for the assessment and specification of lighting requirements, ensuring that spaces are adequately illuminated according to established standards and practices.

Complete list of conversion for Phot
Phot (ph)

1 Phot = 10000 Candela

Convert 2 ph → cd

1 Phot = 10000 Candlepower

Convert 2 ph → cp

1 Phot = 10000 Lumen

Convert 2 ph → lm

1 Phot = 10000 Lux

Convert 2 ph → lx

1 Phot = 929.0312990644655 Footcandle

Convert 2 ph → fc

1 Phot = 10000 Candela per square meter

Convert 2 ph → cd/m²

1 Phot = 10000 Nit

Convert 2 ph → nt

1 Phot = 1 Stilb

Convert 2 ph → sb

1 Phot = 3.141592653587727 Lambert

Convert 2 ph → L

1 Phot = 2918.635079290997 Footlambert

Convert 2 ph → fL

1 Phot = 10000 Lumen second

Convert 2 ph → lm·s

1 Phot = 10000 Lux second

Convert 2 ph → lx·s

1 Phot = 10000 Rayleigh

Convert 2 ph → R