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 TC = 1.333 QC
1 QC = 0.75 TC
例子:
将15 第三圈转换为四分之一圈：
15 TC = 20 QC
| 第三圈 | 四分之一圈 |
|---|---|
| 0.01 TC | 0.013 QC |
| 0.1 TC | 0.133 QC |
| 1 TC | 1.333 QC |
| 2 TC | 2.667 QC |
| 3 TC | 4 QC |
| 5 TC | 6.667 QC |
| 10 TC | 13.333 QC |
| 20 TC | 26.667 QC |
| 30 TC | 40 QC |
| 40 TC | 53.333 QC |
| 50 TC | 66.667 QC |
| 60 TC | 80 QC |
| 70 TC | 93.333 QC |
| 80 TC | 106.667 QC |
| 90 TC | 120 QC |
| 100 TC | 133.333 QC |
| 250 TC | 333.333 QC |
| 500 TC | 666.667 QC |
| 750 TC | 1,000 QC |
| 1000 TC | 1,333.333 QC |
| 10000 TC | 13,333.333 QC |
| 100000 TC | 133,333.333 QC |
规则