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 dec = 10,000,000,000,000 pHz
1 pHz = 1.0000e-13 dec
例子:
将15 十年转换为Picohertz：
15 dec = 150,000,000,000,000 pHz
| 十年 | Picohertz |
|---|---|
| 0.01 dec | 100,000,000,000 pHz |
| 0.1 dec | 1,000,000,000,000 pHz |
| 1 dec | 10,000,000,000,000 pHz |
| 2 dec | 20,000,000,000,000 pHz |
| 3 dec | 30,000,000,000,000 pHz |
| 5 dec | 50,000,000,000,000 pHz |
| 10 dec | 100,000,000,000,000 pHz |
| 20 dec | 200,000,000,000,000 pHz |
| 30 dec | 300,000,000,000,000 pHz |
| 40 dec | 400,000,000,000,000 pHz |
| 50 dec | 500,000,000,000,000 pHz |
| 60 dec | 600,000,000,000,000 pHz |
| 70 dec | 700,000,000,000,000 pHz |
| 80 dec | 800,000,000,000,000 pHz |
| 90 dec | 900,000,000,000,000 pHz |
| 100 dec | 1,000,000,000,000,000 pHz |
| 250 dec | 2,500,000,000,000,000 pHz |
| 500 dec | 5,000,000,000,000,000 pHz |
| 750 dec | 7,500,000,000,000,000 pHz |
| 1000 dec | 10,000,000,000,000,000 pHz |
| 10000 dec | 100,000,000,000,000,000 pHz |
| 100000 dec | 1,000,000,000,000,000,000 pHz |
规则