Doppler Effect Calculator
Calculate the observed frequency and wavelength when source or observer is in motion, and compute beat frequency between two waves.
Doppler Frequency
Observed Frequency
440 Hz
f′ = f × (v + vo) / (v − vs)
Observed Wavelength
0.7795454545 m
λ′ = (v − vs) / f
Beat Frequency
Beat Frequency
4 Hz
fbeat = |f1 − f2|