La capacità elettrica è la capacità di un sistema di immagazzinare carica elettrica.
1 W/F = 1,000,000,000 nF 
1 nF = 1.0000e-9 W/F 
Esempio: 
Convert 15 Watt per Farad in È finita:
15 W/F = 15,000,000,000 nF 
| Watt per Farad | È finita | 
|---|---|
| 0.01 W/F | 10,000,000 nF | 
| 0.1 W/F | 100,000,000 nF | 
| 1 W/F | 1,000,000,000 nF | 
| 2 W/F | 2,000,000,000 nF | 
| 3 W/F | 3,000,000,000 nF | 
| 5 W/F | 5,000,000,000 nF | 
| 10 W/F | 10,000,000,000 nF | 
| 20 W/F | 20,000,000,000 nF | 
| 30 W/F | 30,000,000,000 nF | 
| 40 W/F | 40,000,000,000 nF | 
| 50 W/F | 50,000,000,000 nF | 
| 60 W/F | 60,000,000,000 nF | 
| 70 W/F | 70,000,000,000 nF | 
| 80 W/F | 80,000,000,000 nF | 
| 90 W/F | 90,000,000,000 nF | 
| 100 W/F | 100,000,000,000 nF | 
| 250 W/F | 250,000,000,000 nF | 
| 500 W/F | 500,000,000,000 nF | 
| 750 W/F | 750,000,000,000 nF | 
| 1000 W/F | 1,000,000,000,000 nF | 
| 10000 W/F | 9,999,999,999,999.998 nF | 
| 100000 W/F | 99,999,999,999,999.98 nF |