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 km/h = 0.304 yd/s
1 yd/s = 3.292 km/h
例子:
将15 每小时公里转换为每秒院子：
15 km/h = 4.557 yd/s
| 每小时公里 | 每秒院子 |
|---|---|
| 0.01 km/h | 0.003 yd/s |
| 0.1 km/h | 0.03 yd/s |
| 1 km/h | 0.304 yd/s |
| 2 km/h | 0.608 yd/s |
| 3 km/h | 0.911 yd/s |
| 5 km/h | 1.519 yd/s |
| 10 km/h | 3.038 yd/s |
| 20 km/h | 6.076 yd/s |
| 30 km/h | 9.113 yd/s |
| 40 km/h | 12.151 yd/s |
| 50 km/h | 15.189 yd/s |
| 60 km/h | 18.227 yd/s |
| 70 km/h | 21.265 yd/s |
| 80 km/h | 24.303 yd/s |
| 90 km/h | 27.34 yd/s |
| 100 km/h | 30.378 yd/s |
| 250 km/h | 75.945 yd/s |
| 500 km/h | 151.891 yd/s |
| 750 km/h | 227.836 yd/s |
| 1000 km/h | 303.782 yd/s |
| 10000 km/h | 3,037.817 yd/s |
| 100000 km/h | 30,378.171 yd/s |
规则