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 rad = 57.296 ° 
1 ° = 0.017 rad 
例子: 
将15 弧度转换为程度:
15 rad = 859.437 ° 
| 弧度 | 程度 | 
|---|---|
| 0.01 rad | 0.573 ° | 
| 0.1 rad | 5.73 ° | 
| 1 rad | 57.296 ° | 
| 2 rad | 114.592 ° | 
| 3 rad | 171.887 ° | 
| 5 rad | 286.479 ° | 
| 10 rad | 572.958 ° | 
| 20 rad | 1,145.916 ° | 
| 30 rad | 1,718.874 ° | 
| 40 rad | 2,291.832 ° | 
| 50 rad | 2,864.79 ° | 
| 60 rad | 3,437.748 ° | 
| 70 rad | 4,010.706 ° | 
| 80 rad | 4,583.664 ° | 
| 90 rad | 5,156.622 ° | 
| 100 rad | 5,729.58 ° | 
| 250 rad | 14,323.95 ° | 
| 500 rad | 28,647.9 ° | 
| 750 rad | 42,971.85 ° | 
| 1000 rad | 57,295.8 ° | 
| 10000 rad | 572,958 ° | 
| 100000 rad | 5,729,580 ° |