Phot to all other illuminance unit conversions


A phot is a photometric unit of illuminance, or luminous flux through an area. It is not an SI unit, but rather is associated with the older centimetre–gram–second system of units. The name was coined by André Blondel in 1921.

Metric equivalence

1 phot = 1(lumeo/ centimeter2) = 10,000 lumen/meter2 = 10,000 Lux =10 Kilolux

Metric dimensions

Illuminance = luminous intensity × solid angle / length2

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Standard Units
Footcandle {{footcandle}}
Kilolux {{kilolux}}
Lumen/square centimeter {{lumenpersquarecentimeter}}
Lumen/square foot {{lumenpersquarefoot}}
Lumen/square inch {{lumenpersquareinch}}
Lumen/square meter {{lumenpersquaremeter}}
Lux {{lux}}
Metercandle {{metercandle}}
Milliphot {{milliphot}}
Nox {{nox}}