Doppler Effect Calculator
Calculate the observed frequency due to the Doppler effect for sound waves.
How to Use the Doppler Effect Calculator
- Enter the source frequency in Hz.
- Enter the speed of sound (343 m/s in air).
- Enter observer and source velocities (positive = moving toward).
- Click Calculate.
使用场景
- •Acoustics research
- •Radar and sonar applications
- •Physics education
公式
f_obs = f₀ × (v + v_obs) / (v + v_src)
常见问题
How accurate is this calculator?
Results are based on standard scientific formulas and are suitable for preliminary estimates.
What units are used?
SI units (metres, kg, seconds) are used unless otherwise noted.
Is it free?
Yes, all calculators are completely free.