How this calculation works
Express a time offset between waves at a shared frequency as a phase angle.
THE FORMULA
Phase delay = 360° × delay/periodA worked example
A delay of 2 over a period of 8 equals a quarter turn or 90°.
Good to know
Use the same units for delay and period.
Reference: OpenStax Algebra and Trigonometry (opens in a new tab) ↗
Read the result
Express a time offset between waves at a shared frequency as a phase angle.
The primary result is labeled “Phase delay (°)”. Keep the input definitions in view when comparing this result with another method.
Try a related calculation
Use the same units for delay and period.
For a related exercise, try the quadratic equation solver.
A few questions, answered
How can I check the default inputs by hand?
A delay of 2 over a period of 8 equals a quarter turn or 90°.
Which rule does this calculator apply?
Phase delay = 360° × delay/period