Enter value between *-1* and *1.* Hit the *Calculate* button to get the arcsine using inverse sine calculator.

Arcsin calculator finds angle of a triangle in degrees and radians for the given value. However, the value should be between *-1* and *1* to get the arcsin in degrees. It converts the sine into inverse to find the angle of triangle.

## What is arcsine?

The arcsine of *x* is defined as the inverse sine function of *x* when *-1≤x≤1. *It is the inverse trigonometric function of sine.

When the sine of *y* is equal to *x:*

**sin ***y* = *x*

Then the arcsine of x is equal to the inverse sine function of x, which is equal to y:

**arcsin ***x* = sin^{-1}* x* = *y*

## How to find arcsin?

To calculate the arcsine for a triangle, follow the below example.

*Example:*

*x = 0.5*

*Arcsin(x) = ?*

*Solution:*

**Step 1: **Place the value of *x *in arcsine function.

*Arcsin(0.5)*

**Step 2: **Take the *sin*^{-1} of *0.5* in calculator (scientific).

*Arcsin(0.5) **= sin*^{-1}(0.5) =** 30***°*

Note: Arcsin of *0* is *0* degree.

## Arcsin table

**x** | **arcsin(x) in degree** | **arcsin(x) in radian** |

-1 | -90° | -π/2 |

-√3/2 | -60° | -π/3 |

-√2/2 | -45° | -π/4 |

-1/2 | -30° | -π/6 |

0 | 0° | 0 |

1/2 | 30° | π/6 |

√2/2 | 45° | π/4 |

√3/2 | 60° | π/3 |

1 | 90° | π/2 |