Angle is a measure of rotation between two intersecting lines or surfaces. It is measured in degrees (°) or radians (rad).
1 TEC = 0.75 HC 
1 HC = 1.333 TEC 
उदाहरण: 
कन्वर्ट 15 Three Eighth Circle से Half Circle:
15 TEC = 11.25 HC 
| Three Eighth Circle | Half Circle | 
|---|---|
| 0.01 TEC | 0.008 HC | 
| 0.1 TEC | 0.075 HC | 
| 1 TEC | 0.75 HC | 
| 2 TEC | 1.5 HC | 
| 3 TEC | 2.25 HC | 
| 5 TEC | 3.75 HC | 
| 10 TEC | 7.5 HC | 
| 20 TEC | 15 HC | 
| 30 TEC | 22.5 HC | 
| 40 TEC | 30 HC | 
| 50 TEC | 37.5 HC | 
| 60 TEC | 45 HC | 
| 70 TEC | 52.5 HC | 
| 80 TEC | 60 HC | 
| 90 TEC | 67.5 HC | 
| 100 TEC | 75 HC | 
| 250 TEC | 187.5 HC | 
| 500 TEC | 375 HC | 
| 750 TEC | 562.5 HC | 
| 1000 TEC | 750 HC | 
| 10000 TEC | 7,500 HC | 
| 100000 TEC | 75,000 HC |