Physics & Engineering
Doppler Effect Calculator
Calculate the observed frequency of a sound wave as source and observer move relative to each other.
Your inputs
Change any value to update the result instantly.
Observed frequency
530.9598 Hz
Source frequency
500 Hz
Frequency shift
30.96 Hz
Speed of sound used
343 m/s
Formula and working
f_o = f_s × (v ± v_o) / (v ∓ v_s)
- 1
Collect the inputs
Source frequency = 500 Hz; Speed of sound = 343 m/s; Source speed (toward observer +) = 20 m/s; Observer speed (toward source +) = 0 m/s
- 2
Apply the formula
f_o = f_s × (v ± v_o) / (v ∓ v_s)
- 3
Result
Observed frequency = 530.9598 Hz
Frequently asked questions
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
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