Convert Elementary charge to Ampere-hours
Convert Elementary charge (e) to Ampere-hours (Ah) instantly and accurately.
Conversion Formula
Ah = e × 4.450490650e-23
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 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
| Elementary charge (e) | Ampere-hours (Ah) |
|---|---|
| 1 e | 4.45 × 10-23 Ah |
| 2 e | 8.901 × 10-23 Ah |
| 5 e | 2.225 × 10-22 Ah |
| 10 e | 4.45 × 10-22 Ah |
| 25 e | 1.113 × 10-21 Ah |
| 50 e | 2.225 × 10-21 Ah |
| 100 e | 4.45 × 10-21 Ah |