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 kHz = 60,000 rpm
1 rpm = 1.6667e-5 kHz
例子:
将15 千赫转换为每分钟革命：
15 kHz = 900,000 rpm
| 千赫 | 每分钟革命 |
|---|---|
| 0.01 kHz | 600 rpm |
| 0.1 kHz | 6,000 rpm |
| 1 kHz | 60,000 rpm |
| 2 kHz | 120,000 rpm |
| 3 kHz | 180,000 rpm |
| 5 kHz | 300,000 rpm |
| 10 kHz | 600,000 rpm |
| 20 kHz | 1,200,000 rpm |
| 30 kHz | 1,800,000 rpm |
| 40 kHz | 2,400,000 rpm |
| 50 kHz | 3,000,000 rpm |
| 60 kHz | 3,600,000 rpm |
| 70 kHz | 4,200,000 rpm |
| 80 kHz | 4,800,000 rpm |
| 90 kHz | 5,400,000 rpm |
| 100 kHz | 6,000,000 rpm |
| 250 kHz | 15,000,000 rpm |
| 500 kHz | 30,000,000 rpm |
| 750 kHz | 45,000,000 rpm |
| 1000 kHz | 60,000,000 rpm |
| 10000 kHz | 600,000,000 rpm |
| 100000 kHz | 6,000,000,000 rpm |
规则