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 = 600 rpm
1 rpm = 0.002 dec
例子:
将15 十年转换为每分钟革命：
15 dec = 9,000 rpm
| 十年 | 每分钟革命 |
|---|---|
| 0.01 dec | 6 rpm |
| 0.1 dec | 60 rpm |
| 1 dec | 600 rpm |
| 2 dec | 1,200 rpm |
| 3 dec | 1,800 rpm |
| 5 dec | 3,000 rpm |
| 10 dec | 6,000 rpm |
| 20 dec | 12,000 rpm |
| 30 dec | 18,000 rpm |
| 40 dec | 24,000 rpm |
| 50 dec | 30,000 rpm |
| 60 dec | 36,000 rpm |
| 70 dec | 42,000 rpm |
| 80 dec | 48,000 rpm |
| 90 dec | 54,000 rpm |
| 100 dec | 60,000 rpm |
| 250 dec | 150,000 rpm |
| 500 dec | 300,000 rpm |
| 750 dec | 450,000 rpm |
| 1000 dec | 600,000 rpm |
| 10000 dec | 6,000,000 rpm |
| 100000 dec | 60,000,000 rpm |
规则