Convert Femtocoulombs to Coulombs
Convert Femtocoulombs (fC) to Coulombs (C) instantly and accurately.
Conversion Formula
C = fC × 1.000000000e-15
About Femtocoulombs
The femtocoulomb (fC) equals 10⁻¹⁵ C, used in radiation detection, MEMS sensors, and microelectronics charge characterisation. A single ionising particle traversing a thin silicon strip detector typically deposits 1-80 fC; noise floors of charge-sensitive amplifiers in nuclear instrumentation are specified in femtocoulombs. 1 fC = 10⁻³ pC = 10³ aC.
About Coulombs
The coulomb (C) is the SI derived unit of electric charge, equal to the charge transported by a current of 1 A in 1 s. In the 2019 SI revision it is fixed exactly via the elementary charge: 1 C = 1 / (1.602 176 634 × 10⁻¹⁹) e ≈ 6.241 × 10¹⁸ e. Practical benchmarks: a 1 Ah battery stores 3 600 C; a lightning bolt transfers 1-20 C.
Quick Reference Table
| Femtocoulombs (fC) | Coulombs (C) |
|---|---|
| 1 fC | 1 × 10-15 C |
| 2 fC | 2 × 10-15 C |
| 5 fC | 5 × 10-15 C |
| 10 fC | 1 × 10-14 C |
| 25 fC | 2.5 × 10-14 C |
| 50 fC | 5 × 10-14 C |
| 100 fC | 1 × 10-13 C |