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 AU/h = 72,060,700 mm/s
1 mm/s = 1.3877e-8 AU/h
例子:
将15 天文单位转换为每秒毫米：
15 AU/h = 1,080,910,500 mm/s
| 天文单位 | 每秒毫米 |
|---|---|
| 0.01 AU/h | 720,607 mm/s |
| 0.1 AU/h | 7,206,070 mm/s |
| 1 AU/h | 72,060,700 mm/s |
| 2 AU/h | 144,121,400 mm/s |
| 3 AU/h | 216,182,100 mm/s |
| 5 AU/h | 360,303,500 mm/s |
| 10 AU/h | 720,607,000 mm/s |
| 20 AU/h | 1,441,214,000 mm/s |
| 30 AU/h | 2,161,821,000 mm/s |
| 40 AU/h | 2,882,428,000 mm/s |
| 50 AU/h | 3,603,035,000 mm/s |
| 60 AU/h | 4,323,642,000 mm/s |
| 70 AU/h | 5,044,249,000 mm/s |
| 80 AU/h | 5,764,856,000 mm/s |
| 90 AU/h | 6,485,463,000 mm/s |
| 100 AU/h | 7,206,070,000 mm/s |
| 250 AU/h | 18,015,175,000 mm/s |
| 500 AU/h | 36,030,350,000 mm/s |
| 750 AU/h | 54,045,525,000 mm/s |
| 1000 AU/h | 72,060,700,000 mm/s |
| 10000 AU/h | 720,607,000,000 mm/s |
| 100000 AU/h | 7,206,070,000,000 mm/s |
规则