In this Article

*This tutorial demonstrates how to use the Excel ASIN Function *returns the inverse sine of a number in radians.

## ASIN Function Overview

The ASIN Function returns the inverse sine of a number in radians.

To use the ASIN Excel Worksheet Function, select a cell and type:

(Notice how the formula inputs appear)

### ASIN Function Syntax and Inputs:

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=ASIN(number) |

**number** – The value to get the inverse sine of. The number must be between -1 and 1 inclusive.

**ASIN Function **

The ASIN Function returns the inverse sine of a number in radians.

1 |
=ASIN(0.5) |

**ASIN & PI Function**

The ASIN Function returns the inverse sine of a number in radians. To convert it into degrees, multiply by 180 and divide by the PI Function.

1 |
=C3*180/PI() |

**ASIN & DEGREES Function**

Alternatively, the DEGREES Function can be directly used to convert the radians output into degrees.

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=DEGREES(ASIN(0.5)) |

**ASIN Function – Out Of Range**

The ASIN Function will return a value if the input lies in the range of -1 to 1. Otherwise the ASIN Function will return an error.

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=ASIN(-2) |

## ASIN in Google Sheets

The ASIN Function works exactly the same in Google Sheets as in Excel: