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 oct = 785.398 mrad
1 mrad = 0.001 oct
例子:
将15 八分之一转换为Milliradian：
15 oct = 11,780.968 mrad
| 八分之一 | Milliradian |
|---|---|
| 0.01 oct | 7.854 mrad |
| 0.1 oct | 78.54 mrad |
| 1 oct | 785.398 mrad |
| 2 oct | 1,570.796 mrad |
| 3 oct | 2,356.194 mrad |
| 5 oct | 3,926.989 mrad |
| 10 oct | 7,853.979 mrad |
| 20 oct | 15,707.958 mrad |
| 30 oct | 23,561.936 mrad |
| 40 oct | 31,415.915 mrad |
| 50 oct | 39,269.894 mrad |
| 60 oct | 47,123.873 mrad |
| 70 oct | 54,977.852 mrad |
| 80 oct | 62,831.831 mrad |
| 90 oct | 70,685.809 mrad |
| 100 oct | 78,539.788 mrad |
| 250 oct | 196,349.471 mrad |
| 500 oct | 392,698.941 mrad |
| 750 oct | 589,048.412 mrad |
| 1000 oct | 785,397.883 mrad |
| 10000 oct | 7,853,978.826 mrad |
| 100000 oct | 78,539,788.257 mrad |
规则