A lux (symbol: lx) is the SI derived unit of illuminance (Eᵥ).
A phot is a unit of illuminance. One phot is equal to 104 lux (lx).
A Lumen per square inch is a unit of illuminance. One Lumen per square inch is equal to 1550.0031 Lux (SI unit).
Divide the lumen per square inch value by 6.451600
phot = lumen per square inch / 6.451600
Multiply the phot value by 6.451600
lumen per square inch = phot x 6.451600
One phot (ph) is equal to 6.451600 lumen per square inch (lm/in²)
1 phot (ph) = 6.451600 lumen per square inch (lm/in²)
One lumen per square inch (lm/in²) is equal to 0.155000 phot (ph)
1 lumen per square inch (lm/in²) = 0.155000 phot (ph)