Convert Femtocoulombs to Ampere-hours
Convert Femtocoulombs (fC) to Ampere-hours (Ah) instantly and accurately.
Conversion Formula
Ah = fC × 2.777777778e-19
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 Ampere-hours
The ampere-hour (Ah) equals exactly 3 600 C and is the universal capacity unit for rechargeable batteries. Lead-acid car batteries are rated 40-100 Ah; EV traction packs use 50-300 Ah cells; industrial forklift batteries exceed 1 000 Ah. Multiplying Ah by nominal voltage gives watt-hours of stored energy. 1 Ah = 3 600 C = 1 000 mAh.
Quick Reference Table
| Femtocoulombs (fC) | Ampere-hours (Ah) |
|---|---|
| 1 fC | 2.778 × 10-19 Ah |
| 2 fC | 5.556 × 10-19 Ah |
| 5 fC | 1.389 × 10-18 Ah |
| 10 fC | 2.778 × 10-18 Ah |
| 25 fC | 6.944 × 10-18 Ah |
| 50 fC | 1.389 × 10-17 Ah |
| 100 fC | 2.778 × 10-17 Ah |