速度是相对于参考框架的对象位置的变化速率。它以每次距离的单位（例如每秒米（m/s））进行测量。
1 mph = 447,040 µm/s
1 µm/s = 2.2369e-6 mph
例子:
将15 每小时英里转换为每秒千分尺：
15 mph = 6,705,600 µm/s
| 每小时英里 | 每秒千分尺 |
|---|---|
| 0.01 mph | 4,470.4 µm/s |
| 0.1 mph | 44,704 µm/s |
| 1 mph | 447,040 µm/s |
| 2 mph | 894,080 µm/s |
| 3 mph | 1,341,120 µm/s |
| 5 mph | 2,235,200 µm/s |
| 10 mph | 4,470,400 µm/s |
| 20 mph | 8,940,800 µm/s |
| 30 mph | 13,411,200 µm/s |
| 40 mph | 17,881,600 µm/s |
| 50 mph | 22,352,000 µm/s |
| 60 mph | 26,822,400 µm/s |
| 70 mph | 31,292,800 µm/s |
| 80 mph | 35,763,200 µm/s |
| 90 mph | 40,233,600 µm/s |
| 100 mph | 44,704,000 µm/s |
| 250 mph | 111,760,000 µm/s |
| 500 mph | 223,520,000 µm/s |
| 750 mph | 335,280,000 µm/s |
| 1000 mph | 447,040,000 µm/s |
| 10000 mph | 4,470,400,000 µm/s |
| 100000 mph | 44,704,000,000 µm/s |
规则