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 = 0.785 rad
1 rad = 1.273 oct
例子:
将15 八分之一转换为弧度：
15 oct = 11.781 rad
| 八分之一 | 弧度 |
|---|---|
| 0.01 oct | 0.008 rad |
| 0.1 oct | 0.079 rad |
| 1 oct | 0.785 rad |
| 2 oct | 1.571 rad |
| 3 oct | 2.356 rad |
| 5 oct | 3.927 rad |
| 10 oct | 7.854 rad |
| 20 oct | 15.708 rad |
| 30 oct | 23.562 rad |
| 40 oct | 31.416 rad |
| 50 oct | 39.27 rad |
| 60 oct | 47.124 rad |
| 70 oct | 54.978 rad |
| 80 oct | 62.832 rad |
| 90 oct | 70.686 rad |
| 100 oct | 78.54 rad |
| 250 oct | 196.349 rad |
| 500 oct | 392.699 rad |
| 750 oct | 589.048 rad |
| 1000 oct | 785.398 rad |
| 10000 oct | 7,853.979 rad |
| 100000 oct | 78,539.788 rad |
规则