1 元电荷（e）等于 4.45049 × 10⁻²⁰ mAh，1 毫安时（mAh）等于 2.24694 × 10¹⁹ e。
| 元电荷 | 毫安时 |
|---|---|
| 0.01 e | 4.45049 × 10⁻²² mAh |
| 0.1 e | 4.45049 × 10⁻²¹ mAh |
| 1 e | 4.45049 × 10⁻²⁰ mAh |
| 2 e | 8.90098 × 10⁻²⁰ mAh |
| 3 e | 1.33515 × 10⁻¹⁹ mAh |
| 4 e | 1.7802 × 10⁻¹⁹ mAh |
| 5 e | 2.22525 × 10⁻¹⁹ mAh |
| 6 e | 2.67029 × 10⁻¹⁹ mAh |
| 7 e | 3.11534 × 10⁻¹⁹ mAh |
| 8 e | 3.56039 × 10⁻¹⁹ mAh |
| 9 e | 4.00544 × 10⁻¹⁹ mAh |
| 10 e | 4.45049 × 10⁻¹⁹ mAh |
| 20 e | 8.90098 × 10⁻¹⁹ mAh |
| 30 e | 1.33515 × 10⁻¹⁸ mAh |
| 40 e | 1.7802 × 10⁻¹⁸ mAh |
| 50 e | 2.22525 × 10⁻¹⁸ mAh |
| 60 e | 2.67029 × 10⁻¹⁸ mAh |
| 70 e | 3.11534 × 10⁻¹⁸ mAh |
| 80 e | 3.56039 × 10⁻¹⁸ mAh |
| 90 e | 4.00544 × 10⁻¹⁸ mAh |
| 100 e | 4.45049 × 10⁻¹⁸ mAh |
| 200 e | 8.90098 × 10⁻¹⁸ mAh |
| 300 e | 1.33515 × 10⁻¹⁷ mAh |
| 500 e | 2.22525 × 10⁻¹⁷ mAh |
| 1,000 e | 4.45049 × 10⁻¹⁷ mAh |
| 10,000 e | 4.45049 × 10⁻¹⁶ mAh |
| 库仑 | 1.60218 × 10⁻¹⁹ C |
| 毫库仑 | 1.60218 × 10⁻¹⁶ mC |
| 微库仑 | 1.60218 × 10⁻¹³ μC |
| 纳库仑 | 0.000000000160217663 nC |
| 安时 | 4.45049 × 10⁻²³ Ah |
| 毫安时 | 4.45049 × 10⁻²⁰ mAh |
| 元电荷 | 1 e |
| 库仑 | 3.6 C |
| 毫库仑 | 3,600 mC |
| 微库仑 | 3,600,000 μC |
| 纳库仑 | 3,600,000,000 nC |
| 安时 | 0.001 Ah |
| 毫安时 | 1 mAh |
| 元电荷 | 2.24694 × 10¹⁹ e |