Doppler Effect Frequency Shift Calculator
Enter the source frequency, velocities and speed of sound to compute the observed frequency using the Doppler effect.
Assumes constant velocity and ignores relativistic effects.
Examples
- 500 Hz, observer 10 m/s, source 20 m/s ⇒ 546.44 Hz
- 1000 Hz, observer 0 m/s, source 30 m/s ⇒ 1095.85 Hz
FAQ
How are directions handled?
Velocities toward each other are positive; use negative values when moving apart.
Can I use other wave speeds?
Yes, replace the speed of sound with the speed of the wave in the medium.
What if source velocity equals wave speed?
The formula approaches infinity; ensure source speed is below wave speed.
Additional Information
- Named after Austrian physicist Christian Doppler.
- Useful in radar, astronomy and medical imaging.