Answer: It is non-SI multiple of the inductance unit henry.
Answer: It is 1.00E-15 times henry.
Symbol : fH
So 1 femtohenry = 1.00E-15 henry.
Example : 10 femtohenry = 1.00E-15 x 10 henries.
Or we can say, 10fH = 1.0E-14 H.
Using this conversion chart compare one femtohenry with other inductance units.
| 1000 attohenry | 1.0E-13 centihenry |
| 1.0E-16 decahenry | 1.0E-14 decihenry |
| 1.0E-33 exahenry | 1 femtohenry |
| 1.0E-24 gigahenry | 1.0E-17 hectohenry |
| 1.0E-15 henry | 1.0E-18 kilohenry |
| 1.0E-21 megahenry | 1.0E-9 microhenry |
| 1.0E-12 millihenry | 1.0E-6 nanohenry |
| 1.0E-30 petahenry | 0.001 picohenry |
| 1.0E-27 terahenry | 1000000000 yoctohenry |
| 1.0E-39 yottahenry | 1000000 zeptohenry |
| 1.0E-36 zettahenry |
