Cosine Calculator | Cos(x)

Using this cosine calculator, you can simply calculate the cosine value of given angle theta.

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cosine calculator

Cosine of angle is one among the three trigonometric ratios. The cosine of an angle ‘α‘ is defined as the ratio between the adjacent side ‘b’ and the hypotenuse ‘c‘.

cos (α)= adjacent/ hypotenuse = b/c

Calculator Use

  • This calculator is simple and quick to use.
  • To begin, input the angle value in the given field.
  • You can enter the value in degree or radians. Make sure to select proper unit from the dropdown field.
  • The calculator will display the cosine value of given angle throughout the rest of the process.


The formula to calculate the cosine of an angle is mentioned below:

cosine formula