lumen/square foot to phot
Please provide values below to convert lumen/square foot [lm/ft^2] to phot [ph], or change ↔.
lumen/square foot [lm/ft^2]
Definition: A unit of illuminance, measuring the amount of luminous flux (in lumens) distributed over one square foot of surface area.
Historyandorigin: It is part of the imperial measurement system and was used in the United States before the metric system became more widely adopted.
CurrentUse: It is still used in some industries in the U.S. and is roughly equivalent to 10.764 lux.
funfact: The lumen per square foot is useful for understanding light levels in spaces like offices and schools where the imperial system is still in use.
phot [ph]
Definition: A unit of illuminance that measures the amount of light falling on one square centimeter of a surface, equal to one lumen per square centimeter.
Historyandorigin: The phot was introduced in the early 20th century and was used to measure illuminance, especially in scientific studies.
CurrentUse: It has mostly been replaced by the lux and is no longer widely used, except in some specialized contexts.
funfact: The phot is still occasionally used in older scientific research but has been largely superseded by the SI unit, lux.
lumen/square foot [lm/ft^2] to phot [ph] Conversion Table
| 1 lumen/square foot [lm/ft^2] | 0.001076391 phot [ph] |
| 2 lumen/square foot [lm/ft^2] | 0.0021527821 phot [ph] |
| 3 lumen/square foot [lm/ft^2] | 0.0032291731 phot [ph] |
| 5 lumen/square foot [lm/ft^2] | 0.0053819552 phot [ph] |
| 10 lumen/square foot [lm/ft^2] | 0.0107639104 phot [ph] |
| 50 lumen/square foot [lm/ft^2] | 0.0538195521 phot [ph] |
| 100 lumen/square foot [lm/ft^2] | 0.1076391042 phot [ph] |
| 1000 lumen/square foot [lm/ft^2] | 1.0763910417 phot [ph] |
| 10000 lumen/square foot [lm/ft^2] | 10.763910417 phot [ph] |
| 100000 lumen/square foot [lm/ft^2] | 107.63910417 phot [ph] |
| 1000000 lumen/square foot [lm/ft^2] | 1076.3910417 phot [ph] |
How to Convert lumen/square foot to phot
1 lumen/square foot [lm/ft^2] = 0.001076391 phot [ph]
1 phot [ph] = 929.0304 lumen/square foot [lm/ft^2]
we use cross multiplication method
lumen/square foot [lm/ft^2] → phot [ph]
1 → 0.001076391
1.5 → ?( suppose x)
=>1.5*0.001076391=1*x
by simplifying
x=0.0016145866