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 TEC = 150 gon
1 gon = 0.007 TEC
例子:
将15 三个第八个圈转换为Gradian：
15 TEC = 2,250 gon
| 三个第八个圈 | Gradian |
|---|---|
| 0.01 TEC | 1.5 gon |
| 0.1 TEC | 15 gon |
| 1 TEC | 150 gon |
| 2 TEC | 300 gon |
| 3 TEC | 450 gon |
| 5 TEC | 750 gon |
| 10 TEC | 1,500 gon |
| 20 TEC | 3,000 gon |
| 30 TEC | 4,500 gon |
| 40 TEC | 6,000 gon |
| 50 TEC | 7,500 gon |
| 60 TEC | 9,000 gon |
| 70 TEC | 10,500 gon |
| 80 TEC | 12,000 gon |
| 90 TEC | 13,500 gon |
| 100 TEC | 15,000 gon |
| 250 TEC | 37,500 gon |
| 500 TEC | 75,000 gon |
| 750 TEC | 112,500 gon |
| 1000 TEC | 150,000 gon |
| 10000 TEC | 1,500,000 gon |
| 100000 TEC | 15,000,000 gon |
规则