Doppler Effect Calculator
doppler effect calculator. Get instant, accurate results. Enter values for instant results with step-by-step formulas.
Reviewed by Manoj Kumar, Mathematics Educator
Reviewed by Manoj Kumar, Mathematics Educator
Formula
f' = f × (v + v_observer) / (v - v_source)
Frequency shift when source or observer moves. v_sound = 343 m/s at 20°C.
Worked Examples
Example 1: Approaching car horn
Problem:f=440Hz, source approaching at 30 m/s
Solution:f'=440×343/(343-30)=482.4 Hz
Result:482.4 Hz
Reviewed by Manoj Kumar, Mathematics Educator · Editorial policy