Converting from Phot (ph) to Lumen per Square Foot (lm/ft²) | Illuminance

What is Phot (ph)

Phot (ph), a unit of illuminance, measures the amount of light present in a given area. It quantifies the intensity of light falling on a surface, taking into account the sensitivity of the human eye to different wavelengths.

What is Lumen per Square Foot (lm/ft²)

Lumen per Square Foot (lm/ft²) is also a unit of illuminance that specifies the amount of light reaching a surface per square foot. It is commonly used to measure the brightness and level of lighting in indoor spaces.

Conversion Formulas

The conversion formulas between Phot (ph) and Lumen per Square Foot (lm/ft²) are as follows:

• To convert from Phot to Lumen per Square Foot:

  Lumen per Square Foot (lm/ft²)=Phot (ph)×929.0304

• To convert from Lumen per Square Foot to Phot:

  Phot (ph)=929.0304Lumen per Square Foot (lm/ft²)​

Examples

• 13 Phot (ph) is equal to 12077.4 Lumen per Square Foot.
• 15 Phot (ph) is equivalent to 13935.46 Lumen per Square Foot.
• 16 Phot (ph) converts to 14864.49 Lumen per Square Foot.

You can utilize the provided conversion values to accurately switch between Phot (ph) and Lumen per Square Foot (lm/ft²) in various lighting scenarios.