L’illuminamento è il flusso luminoso totale incidente su una superficie per unità di area.
1 fc = 10.764 pm 
1 pm = 0.093 fc 
Esempio: 
Convert 15 Candela in Misura fotometrica:
15 fc = 161.46 pm 
| Candela | Misura fotometrica | 
|---|---|
| 0.01 fc | 0.108 pm | 
| 0.1 fc | 1.076 pm | 
| 1 fc | 10.764 pm | 
| 2 fc | 21.528 pm | 
| 3 fc | 32.292 pm | 
| 5 fc | 53.82 pm | 
| 10 fc | 107.64 pm | 
| 20 fc | 215.28 pm | 
| 30 fc | 322.92 pm | 
| 40 fc | 430.56 pm | 
| 50 fc | 538.2 pm | 
| 60 fc | 645.84 pm | 
| 70 fc | 753.48 pm | 
| 80 fc | 861.12 pm | 
| 90 fc | 968.76 pm | 
| 100 fc | 1,076.4 pm | 
| 250 fc | 2,691 pm | 
| 500 fc | 5,382 pm | 
| 750 fc | 8,073 pm | 
| 1000 fc | 10,764 pm | 
| 10000 fc | 107,640 pm | 
| 100000 fc | 1,076,400 pm |