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 rad = 0.637 QC
1 QC = 1.571 rad
例子:
将15 弧度转换为四分之一圈：
15 rad = 9.549 QC
| 弧度 | 四分之一圈 |
|---|---|
| 0.01 rad | 0.006 QC |
| 0.1 rad | 0.064 QC |
| 1 rad | 0.637 QC |
| 2 rad | 1.273 QC |
| 3 rad | 1.91 QC |
| 5 rad | 3.183 QC |
| 10 rad | 6.366 QC |
| 20 rad | 12.732 QC |
| 30 rad | 19.099 QC |
| 40 rad | 25.465 QC |
| 50 rad | 31.831 QC |
| 60 rad | 38.197 QC |
| 70 rad | 44.563 QC |
| 80 rad | 50.93 QC |
| 90 rad | 57.296 QC |
| 100 rad | 63.662 QC |
| 250 rad | 159.155 QC |
| 500 rad | 318.31 QC |
| 750 rad | 477.465 QC |
| 1000 rad | 636.62 QC |
| 10000 rad | 6,366.2 QC |
| 100000 rad | 63,662 QC |
规则