Doppler Effect Calculator

Calculate the frequency shift due to relative motion between source and observer

Source Frequency (Hz):

Wave Speed (m/s):

Source Velocity (m/s):

Observer Velocity (m/s):

Default wave speed is for sound in air (343 m/s). Use positive velocities for approach, negative for recession.

f' = f₀ × (v + v_observer) / (v - v_source)

Where: f' = observed frequency, f₀ = source frequency, v = wave speed

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MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: University Physics

by Young & Freedman

ðŸ”„Last reviewed: May 2026

âœ“Formula checks are based on standard references and internal QA review.