How many times faster does sound travel in water compared to air?

Sound travels approximately four times faster in water than in air. This phenomenon occurs because the density and elasticity of water are significantly higher than those of air. In air, sound travels at about 343 meters per second (m/s) at room temperature, while in water, sound can travel at around 1,480 m/s. The increased density of water allows sound waves to transmit their energy more efficiently, resulting in a greater speed compared to their travel through air. Understanding this difference is crucial for divers, as it affects how sound is perceived underwater, influencing communication and the detection of marine life or objects.