Arctan Calculator
Conversion Table
| Input | Radians | Degrees |
|---|---|---|
| -10 | -1.471128 | -84.289407 |
| -2 | -1.107149 | -63.434949 |
| -1 | -0.785398 | -45 |
| -0.5 | -0.463648 | -26.565051 |
| 0 | 0 | 0 |
| 0.5 | 0.463648 | 26.565051 |
| 1 | 0.785398 | 45 |
| 2 | 1.107149 | 63.434949 |
| 10 | 1.471128 | 84.289407 |
| 100 | 1.560797 | 89.427061 |
How This Converter Works
Returns the principal arctangent of a numeric input, with results in radians and degrees. Its input may be any finite real number; the principal angle approaches but does not reach +/- pi/2. The page does not validate input, and raw JavaScript results are displayed without rounding or suffix.
Formula or rule
radians = atan(x); degrees = radians * 180 / pi
Example
- Input
- 1
- Calculation
- atan(1) = pi / 4 radians; (pi / 4) * 180 / pi
- Result
- 0.7853981633974483 radians; 45 degrees