Double angle formula calculator

Enter value and click on calculate. Result will be displayed.

Select Unit :
    
Enter θ angle :

Result :
---

What is a double angle? Double angle, as the words imply, means to increase the size of the angle to twice its size. It simply means two times of a trigonometric angle i.e. 2x in terms of x. Double-angle identities are used to simplify trigonometric calculations.
The double angle identity calculator finds the value of a double angle for any trigonometric function if the value of an angle is provided.
Search calculator
x