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 = 50 gon
1 gon = 0.02 oct
例子:
将15 八分之一转换为Gradian：
15 oct = 750 gon
| 八分之一 | Gradian |
|---|---|
| 0.01 oct | 0.5 gon |
| 0.1 oct | 5 gon |
| 1 oct | 50 gon |
| 2 oct | 100 gon |
| 3 oct | 150 gon |
| 5 oct | 250 gon |
| 10 oct | 500 gon |
| 20 oct | 1,000 gon |
| 30 oct | 1,500 gon |
| 40 oct | 2,000 gon |
| 50 oct | 2,500 gon |
| 60 oct | 3,000 gon |
| 70 oct | 3,500 gon |
| 80 oct | 4,000 gon |
| 90 oct | 4,500 gon |
| 100 oct | 5,000 gon |
| 250 oct | 12,500 gon |
| 500 oct | 25,000 gon |
| 750 oct | 37,500 gon |
| 1000 oct | 50,000 gon |
| 10000 oct | 500,000 gon |
| 100000 oct | 5,000,000 gon |
规则