Convert Elementary charge to Attocoulombs
Convert Elementary charge (e) to Attocoulombs (aC) instantly and accurately.
Conversion Formula
aC = e × 0.1602176634
About Elementary charge
The elementary charge (e) is the magnitude of charge on a single proton or electron, defined exactly as 1.602 176 634 × 10⁻¹⁹ C in the 2019 SI revision. It is the quantum of electric charge - the smallest freely occurring charge in nature - and underpins all atomic and subatomic physics. A current of 1 A corresponds to 6.241 509 × 10¹⁸ elementary charges flowing per second.
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
| Elementary charge (e) | Attocoulombs (aC) |
|---|---|
| 1 e | 0.160218 aC |
| 2 e | 0.320435 aC |
| 5 e | 0.801088 aC |
| 10 e | 1.60218 aC |
| 25 e | 4.00544 aC |
| 50 e | 8.01088 aC |
| 100 e | 16.0218 aC |