Convert Abcoulombs to Attocoulombs
Convert Abcoulombs (abC) to Attocoulombs (aC) instantly and accurately.
Conversion Formula
aC = abC × 1.000000000e+19
About Abcoulombs
The abcoulomb (abC) equals exactly 10 C - the charge unit of the CGS-EMU (electromagnetic) system, defined as the charge transported by 1 abampere (= 10 A) in 1 s. Two parallel wires each carrying 1 abampere and spaced 1 cm apart experience a force of 2 dyn per centimetre length. The abcoulomb appears in older electromagnetic engineering literature from the early twentieth century. 1 abC = 10 C.
About Attocoulombs
The attocoulomb (aC) equals 10⁻¹⁸ C, sitting between the elementary charge and the femtocoulomb. It arises in ultra-sensitive charge measurements: single-electron transistors, quantum capacitance probing of graphene and 2D materials, and scanning tunnelling microscopy where tip-sample charge exchange is tracked at this scale. 1 aC = 10⁻³ fC ≈ 6.24 e.
Quick Reference Table
| Abcoulombs (abC) | Attocoulombs (aC) |
|---|---|
| 1 abC | 1 × 1019 aC |
| 2 abC | 2 × 1019 aC |
| 5 abC | 5 × 1019 aC |
| 10 abC | 1 × 1020 aC |
| 25 abC | 2.5 × 1020 aC |
| 50 abC | 5 × 1020 aC |
| 100 abC | 1 × 1021 aC |