Online arcsin(x) calculator. Inverse sine calculator.
In order to calculate arcsin(x) on the calculator:
- Enter the input value.
- Select result type of degrees (°) or radians (rad) in the right combo box.
- Press the = button to calculate the result.
Arcsine definition
The arcsine function is the inverse function of y = sin(x).
arcsin(y) = sin-1(y) = x + 2kπ
For every
k = {...,-2,-1,0,1,2,...}
For example, If the sine of 30° is 0.5:
sin(30°) = 0.5
Then the arcsine of 0.5 is 30°:
arcsin(0.5) = sin-1(0.5) = 30°
Arcsine table
| y | x = arcsin(y) | |
|---|---|---|
| degrees | radians | |
| -1 | -90° | -π/2 |
| -0.8660254 | -60° | -π/3 |
| -0.7071068 | -45° | -π/4 |
| -0.5 | -30° | -π/6 |
| 0 | 0° | 0 |
| 0.5 | 30° | π/6 |
| 0.7071068 | 45° | π/4 |
| 0.8660254 | 60° | π/3 |
| 1 | 90° | π/2 |
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