角度是两个相交线或表面之间旋转的度量。它以程度（°）或弧度（rad）为单位进行测量。
1 mrad = 0.001 OEC
1 OEC = 785.398 mrad
例子:
将15 Milliradian转换为一个八个圈：
15 mrad = 0.019 OEC
| Milliradian | 一个八个圈 |
|---|---|
| 0.01 mrad | 1.2732e-5 OEC |
| 0.1 mrad | 0 OEC |
| 1 mrad | 0.001 OEC |
| 2 mrad | 0.003 OEC |
| 3 mrad | 0.004 OEC |
| 5 mrad | 0.006 OEC |
| 10 mrad | 0.013 OEC |
| 20 mrad | 0.025 OEC |
| 30 mrad | 0.038 OEC |
| 40 mrad | 0.051 OEC |
| 50 mrad | 0.064 OEC |
| 60 mrad | 0.076 OEC |
| 70 mrad | 0.089 OEC |
| 80 mrad | 0.102 OEC |
| 90 mrad | 0.115 OEC |
| 100 mrad | 0.127 OEC |
| 250 mrad | 0.318 OEC |
| 500 mrad | 0.637 OEC |
| 750 mrad | 0.955 OEC |
| 1000 mrad | 1.273 OEC |
| 10000 mrad | 12.732 OEC |
| 100000 mrad | 127.324 OEC |
规则