Phot (ph) to Lumen per Square Inch (lm/in²) converter

Converting from Phot (ph) to Lumen per Square Inch (lm/in²) | Illuminance

What is Phot (ph)

In illumination, a phot (ph) is a unit of illuminance measuring the amount of light reaching a surface. One phot is equal to one lumen per square meter.

What is Lumen per Square Inch (lm/in²)

Lumen per square inch (lm/in²) is another unit of illuminance, measuring the amount of light incident on a surface within one square inch area.

Conversion Formulas

The conversion formulas between Phot (ph) and Lumen per Square Inch (lm/in²) are as follows:

  • To convert from phot to lm/in²:
    lm/in²=ph×6.4516
  • To convert from lm/in² to phot:
    ph=6.4516lm/in²​

Examples

  • 8 ph is equivalent to 51.6128 lm/in²
  • 2 ph is equivalent to 12.9032 lm/in²
  • 12 lm/in² is equivalent to 1.860004 ph

Use these conversion formulas to interchange between Phot (ph) and Lumen per Square Inch (lm/in²) units accurately.

Phot to Lumen per Square Inch conversion table

ph to lm/in² conversion table

Phot (ph)Lumen per Square Inch (lm/in²)
0.01 ph0.064516 lm/in²
0.1 ph0.64516 lm/in²
1 ph6.4516 lm/in²
2 ph12.9032 lm/in²
3 ph19.3548 lm/in²
4 ph25.8064 lm/in²
5 ph32.258 lm/in²
6 ph38.7096 lm/in²
7 ph45.1612 lm/in²
8 ph51.6128 lm/in²
9 ph58.0644 lm/in²
10 ph64.516 lm/in²
10 ph64.516 lm/in²
20 ph129.032 lm/in²
30 ph193.548 lm/in²
40 ph258.064 lm/in²
50 ph322.58 lm/in²
60 ph387.096 lm/in²
70 ph451.612 lm/in²
80 ph516.128 lm/in²
90 ph580.644 lm/in²
100 ph645.16 lm/in²
1 000 ph6 451.6 lm/in²
2 000 ph12 903.2 lm/in²
3 000 ph19 354.8 lm/in²
4 000 ph25 806.4 lm/in²
5 000 ph32 258 lm/in²
6 000 ph38 709.6 lm/in²
7 000 ph45 161.2 lm/in²
8 000 ph51 612.8 lm/in²
9 000 ph58 064.4 lm/in²
10 000 ph64 516 lm/in²