The ASIN function in Excel calculates the arcsine (inverse of sine) of a given number and returns the angle in radians between 0 and π. Arcsine is inverse of sine.

ARCCOS(**a/c)= **θ

Arccosine of the opposite side – a, divided by the hypotenuse – c equal to the angle θ.

**Syntax of ASIN Function in Excel**

ASIN(number)

Where Argument number is a value between -1 and 1 which you need to calculate the arcsine.

**Example of ASIN Function in Excel**

**Formula**

- From Row number 2 to 5 ASIN is calculated in radians for value between -1 and 1 that is being passed as input to the ASIN Function.
- In row number 6, ASIN is calculated in degree for the value 0 which is 0 degree

**Note: **if you want the value of ASIN Function to be calculated in degrees, then convert it in degrees using DEGREES Function as shown in 6^{th} row.