Phase shift is the lateral difference between two or more wave forms along a common axis.
We use the phase shift formula to determine the relationship between two wave forms and their resulting phase angle.
Formula to calculate phase shift.
![Calculate Phase Shift.](https://www.learntocalculate.com/wp-content/uploads/2020/10/phase-shift.png)
Example:
Calculate the phase shift of a wave if the time difference between it and another wave is 0.1 seconds and its period is 0.001 seconds.
![Calculate Phase Shift.](https://www.learntocalculate.com/wp-content/uploads/2020/10/phase-shift-2.png)
Therefore, the phase shift of the wave is 3.6 degrees.