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 ly/yr = 3.281 ft/s
1 ft/s = 0.305 ly/yr
例子:
将15 每年光年转换为每秒脚：
15 ly/yr = 49.213 ft/s
| 每年光年 | 每秒脚 |
|---|---|
| 0.01 ly/yr | 0.033 ft/s |
| 0.1 ly/yr | 0.328 ft/s |
| 1 ly/yr | 3.281 ft/s |
| 2 ly/yr | 6.562 ft/s |
| 3 ly/yr | 9.843 ft/s |
| 5 ly/yr | 16.404 ft/s |
| 10 ly/yr | 32.808 ft/s |
| 20 ly/yr | 65.617 ft/s |
| 30 ly/yr | 98.425 ft/s |
| 40 ly/yr | 131.234 ft/s |
| 50 ly/yr | 164.042 ft/s |
| 60 ly/yr | 196.85 ft/s |
| 70 ly/yr | 229.659 ft/s |
| 80 ly/yr | 262.467 ft/s |
| 90 ly/yr | 295.276 ft/s |
| 100 ly/yr | 328.084 ft/s |
| 250 ly/yr | 820.21 ft/s |
| 500 ly/yr | 1,640.42 ft/s |
| 750 ly/yr | 2,460.63 ft/s |
| 1000 ly/yr | 3,280.84 ft/s |
| 10000 ly/yr | 32,808.399 ft/s |
| 100000 ly/yr | 328,083.99 ft/s |
规则