Marine Sound Propagation Calculator
Calculate the speed of sound in seawater from temperature, salinity, and depth using the Mackenzie equation.
Inputs
°C
PSU
m
Results
Speed of Sound
1,491.44 m/s
Absorption at 1 kHz0.06 dB/km
Transmission Loss (1 km)60.1 dB
Acoustic Impedance1,533,160 Pa·s/m
Est. SOFAR Channel Depth1,100 m
How to Use This Calculator
- Enter Water Temperature, Salinity, and Depth.
- Review the Speed of Sound (m/s) result.
- Use Absorption at 1 kHz (dB/km) and Transmission Loss (1 km) (dB) to inform your decision.
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