GET COSINE Value using COS Function in Excel

The COS function in Excel calculates and returns the cosine of a given radians.

Trigonometric Function in ExcelCOS(θ) =  Adjacent / Hypotenuse     = b/c

 

Cosine of the angle θ, is the ratio of the adjacent side – b, to the hypotenuse – c.

 

Syntax of COS Function in Excel

COS(number)

Where Argument number is angle in radians which you need to calculate the cosine of.

NOTE: If your angle is in degrees, you will need to convert it into radians before supplying it to the COS Function with the help of Radians function

=RADIANS( degrees )

Example of COS Function in Excel

Formula

COS Function in Excel 1

  • In Row number 2 and 3 the radians value is passed to the COS Function
  • In row number 4, Angle 60 degree is converted to radians and passed as input to the COS Function.
  • In Row number 5 Radians -π/6 is passed as input to the COS Function.
  • In row number 6, Angle -90 degree is converted to radians and passed as input to the COS Function.
Result

COS Function in Excel 2

previous-small COS Function in Excel                                                                                                                next_small COS Function in Excel