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 = 0.016 rad
1 rad = 63.662 gon
例子:
将15 Gradian转换为弧度：
15 gon = 0.236 rad
| Gradian | 弧度 |
|---|---|
| 0.01 gon | 0 rad |
| 0.1 gon | 0.002 rad |
| 1 gon | 0.016 rad |
| 2 gon | 0.031 rad |
| 3 gon | 0.047 rad |
| 5 gon | 0.079 rad |
| 10 gon | 0.157 rad |
| 20 gon | 0.314 rad |
| 30 gon | 0.471 rad |
| 40 gon | 0.628 rad |
| 50 gon | 0.785 rad |
| 60 gon | 0.942 rad |
| 70 gon | 1.1 rad |
| 80 gon | 1.257 rad |
| 90 gon | 1.414 rad |
| 100 gon | 1.571 rad |
| 250 gon | 3.927 rad |
| 500 gon | 7.854 rad |
| 750 gon | 11.781 rad |
| 1000 gon | 15.708 rad |
| 10000 gon | 157.08 rad |
| 100000 gon | 1,570.796 rad |
规则