Skip to main content

Excel SIN Function

The SIN function calculates the sine of an angle in radians.

sin function 1




  • number (required): The angle in radians for which you want to calculate the sine. Note: The absolute value of number must be less than 2^27.

Return Value

The SIN function returns a numeric value.

Function Notes

  • number should be an angle in radians. If it’s an angle in degrees, use the RADIANS function: =SIN(RADIANS(number)); or multiply the angle by PI()/180, =SIN(number*PI()/180).
  • SIN returns the #NUM! error if |number| ≥ 2^27.
  • SIN returns the #VALUE! error if number is not numeric.


To calculate the sine of the angles listed in the table as shown below, please copy or enter the below formula in the top cell (D6) of the result list, and press Enter to get the result. Then select the result cell, and drag the fill handle (the small square in the lower-right corner of the selected cell) down to apply the formula to the below cells.


sin function 2

Instead of a cell reference, you can type the actual number value in the formula as shown below.


Related functions

Excel SINH Function

The SINH function calculates the hyperbolic sine of a number.

Excel RADIANS Function

The RADIANS function converts degrees to radians.

Excel PI Function

The PI function returns the number 3.14159265358979 of the mathematical constant called pi.

The Best Office Productivity Tools

Office Tab - Enable Tabbed Reading and Editing in Microsoft Office (include Excel)

  • One second to switch between dozens of open documents!
  • Reduce hundreds of mouse clicks for you every day, say goodbye to mouse hand.
  • Increases your productivity by 50% when viewing and editing multiple documents.
  • Brings Efficient Tabs to Office (include Excel), Just Like Chrome, Edge and Firefox.
Comments (0)
No ratings yet. Be the first to rate!
There are no comments posted here yet
Please leave your comments in English
Posting as Guest
Rate this post:
0   Characters
Suggested Locations