Enter a value in candela per square meter (cd/m²) in the "From" field, and the equivalent value in phot (ph) will be displayed in the "To" field automatically.

The conversion factor between candela per square meter and phot is calculated automatically based on their relationship to the base unit in the photometry / light category.

Yes, you can convert between any units in the photometry / light category. Use the dropdown menus to select different units.