速度是对象移动的速度，而速度是指定方向的速度。它以每秒米（m/s）为单位进行测量。
1 mph = 0 mi/s
1 mi/s = 3,599.991 mph
例子:
将15 每小时英里转换为每秒英里：
15 mph = 0.004 mi/s
| 每小时英里 | 每秒英里 |
|---|---|
| 0.01 mph | 2.7778e-6 mi/s |
| 0.1 mph | 2.7778e-5 mi/s |
| 1 mph | 0 mi/s |
| 2 mph | 0.001 mi/s |
| 3 mph | 0.001 mi/s |
| 5 mph | 0.001 mi/s |
| 10 mph | 0.003 mi/s |
| 20 mph | 0.006 mi/s |
| 30 mph | 0.008 mi/s |
| 40 mph | 0.011 mi/s |
| 50 mph | 0.014 mi/s |
| 60 mph | 0.017 mi/s |
| 70 mph | 0.019 mi/s |
| 80 mph | 0.022 mi/s |
| 90 mph | 0.025 mi/s |
| 100 mph | 0.028 mi/s |
| 250 mph | 0.069 mi/s |
| 500 mph | 0.139 mi/s |
| 750 mph | 0.208 mi/s |
| 1000 mph | 0.278 mi/s |
| 10000 mph | 2.778 mi/s |
| 100000 mph | 27.778 mi/s |
规则