Footcandle (fc) to Lumen per Square Inch (lm/in²) converter

Converting from Footcandle (fc) to Lumen per Square Inch (lm/in²) | Illuminance

What is Footcandle (fc)

Footcandle (fc) is a unit of illuminance that measures the amount of light falling on a surface. One footcandle is equal to one lumen per square foot.

What is Lumen per Square Inch (lm/in²)

Lumen per Square Inch (lm/in²) is another unit of illuminance that measures the amount of light incident on a surface in square inches. It is the luminous flux divided by the area in square inches.

Conversion Formulas

1 (fc) = 0.006944444 (lm/in²)
1 (lm/in²) = 144 (fc)

Examples

  • 15 fc = 0.1041667 lm/in²
  • 15 lm/in² = 2160 fc
  • 5 fc = 0.03472222 lm/in²
  • 5 lm/in² = 720 fc
  • 17 fc = 0.1180556 lm/in²
  • 17 lm/in² = 2448 fc

Use these conversions to easily switch between Footcandles and Lumens per Square Inch for your lighting calculations.

Footcandle to Lumen per Square Inch conversion table

fc to lm/in² conversion table

Footcandle (fc)Lumen per Square Inch (lm/in²)
0.01 fc0.00006944444 lm/in²
0.1 fc0.0006944444 lm/in²
1 fc0.006944444 lm/in²
2 fc0.01388889 lm/in²
3 fc0.02083333 lm/in²
4 fc0.02777778 lm/in²
5 fc0.03472222 lm/in²
6 fc0.04166667 lm/in²
7 fc0.04861111 lm/in²
8 fc0.05555556 lm/in²
9 fc0.0625 lm/in²
10 fc0.06944444 lm/in²
10 fc0.06944444 lm/in²
20 fc0.1388889 lm/in²
30 fc0.2083333 lm/in²
40 fc0.2777778 lm/in²
50 fc0.3472222 lm/in²
60 fc0.4166667 lm/in²
70 fc0.4861111 lm/in²
80 fc0.5555556 lm/in²
90 fc0.625 lm/in²
100 fc0.6944444 lm/in²
1 000 fc6.944444 lm/in²
2 000 fc13.88889 lm/in²
3 000 fc20.83333 lm/in²
4 000 fc27.77778 lm/in²
5 000 fc34.72222 lm/in²
6 000 fc41.66667 lm/in²
7 000 fc48.61111 lm/in²
8 000 fc55.55556 lm/in²
9 000 fc62.5 lm/in²
10 000 fc69.44444 lm/in²