Doppler Effect Calculator

Calculate the observed frequency when a sound source or observer is moving. Includes speed of sound presets for air, water, and steel.

Doppler Parameters

f' = f × (v ± v_o) / (v ∓ v_s)

Medium (Speed of Sound)
Wave Speed (v)
Source Frequency (f)
Observer Speed (v_o)
Source Speed (v_s)
Observed Frequency (f')
Frequency Change
Observed Wavelength
Step-by-Step