频率是每单位时间重复事件的发生数量。它是在赫兹（Hz）中测量的。
1 pHz = 1.0000e-9 mHz
1 mHz = 1,000,000,000 pHz
例子:
将15 Picohertz转换为Millihertz：
15 pHz = 1.5000e-8 mHz
| Picohertz | Millihertz |
|---|---|
| 0.01 pHz | 1.0000e-11 mHz |
| 0.1 pHz | 1.0000e-10 mHz |
| 1 pHz | 1.0000e-9 mHz |
| 2 pHz | 2.0000e-9 mHz |
| 3 pHz | 3.0000e-9 mHz |
| 5 pHz | 5.0000e-9 mHz |
| 10 pHz | 1.0000e-8 mHz |
| 20 pHz | 2.0000e-8 mHz |
| 30 pHz | 3.0000e-8 mHz |
| 40 pHz | 4.0000e-8 mHz |
| 50 pHz | 5.0000e-8 mHz |
| 60 pHz | 6.0000e-8 mHz |
| 70 pHz | 7.0000e-8 mHz |
| 80 pHz | 8.0000e-8 mHz |
| 90 pHz | 9.0000e-8 mHz |
| 100 pHz | 1.0000e-7 mHz |
| 250 pHz | 2.5000e-7 mHz |
| 500 pHz | 5.0000e-7 mHz |
| 750 pHz | 7.5000e-7 mHz |
| 1000 pHz | 1.0000e-6 mHz |
| 10000 pHz | 1.0000e-5 mHz |
| 100000 pHz | 0 mHz |
规则