Relativistic Doppler Effect Calculator

Calculate frequency shift for light at relativistic speeds

Source Frequency (Hz)

Motion Direction

Velocity Unit

Relative Velocity

Enter values to calculate

Approaching: f = f₀√((1+β)/(1-β))

Receding: f = f₀√((1-β)/(1+β))

Where β = v/c and f₀ is the source frequency.

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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.