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 gon = 0.02 oct
1 oct = 50 gon
例子:
将15 Gradian转换为八分之一：
15 gon = 0.3 oct
| Gradian | 八分之一 |
|---|---|
| 0.01 gon | 0 oct |
| 0.1 gon | 0.002 oct |
| 1 gon | 0.02 oct |
| 2 gon | 0.04 oct |
| 3 gon | 0.06 oct |
| 5 gon | 0.1 oct |
| 10 gon | 0.2 oct |
| 20 gon | 0.4 oct |
| 30 gon | 0.6 oct |
| 40 gon | 0.8 oct |
| 50 gon | 1 oct |
| 60 gon | 1.2 oct |
| 70 gon | 1.4 oct |
| 80 gon | 1.6 oct |
| 90 gon | 1.8 oct |
| 100 gon | 2 oct |
| 250 gon | 5 oct |
| 500 gon | 10 oct |
| 750 gon | 15 oct |
| 1000 gon | 20 oct |
| 10000 gon | 200 oct |
| 100000 gon | 2,000 oct |
规则