Phase Shift Calculator
Calculate the phase shift of a wave from a path difference or distance, using frequency and wave speed.
Compare Your Options And Get Clear Answers
Calculate the phase shift of a wave from a path difference or distance, using frequency and wave speed.
Phase Shift Estimator
Enter your numbers below for an instant estimate.
How It Works
Key concepts behind this calculator
Wavelength
λ = speed ÷ frequency.
Phase
Shift = 360° × path difference ÷ wavelength.
Wrap
Reduce the answer to between 0 and 360 degrees.
Use As A Guide
Results are estimates based on your inputs. Check real quotes, rates and professional advice before deciding.
Phase Shift Examples
Phase for a 1 kHz sound wave (λ = 0.343 m).
| Path Difference | Wavelengths | Phase Shift | Effect |
|---|---|---|---|
| 0 m | 0 | 0° | Constructive |
| 0.086 m | 0.25 | 90° | Quadrature |
| 0.1715 m | 0.5 | 180° | Cancellation |
| 0.343 m | 1 | 360° | Constructive |
| Rule of Thumb | λ/2 delay = opposite phase | Phase = 360 × d/λ | Wrap at 360 |
Phase Shift Calculator FAQ
Answers to common questions about this calculator.
The difference in position along the wave cycle between two waves, usually measured in degrees.
Each wavelength of extra distance adds 360 degrees of phase.
A shift of 180 degrees between equal waves cancels them.
Yes, use the speed of light for the wave speed.