Velocity of Sound in Sea Water (20°C, 10m depth) to Meter per Minute

The speed of sound in seawater at 20°C and 10 meters depth is approximately 1,522 m/s, varying with temperature, salinity, and pressure.

Complex function of T, S, P. Mackenzie equation: c ≈ 1,449 + 4.6T - 0.055T² + 0.00029T³ + (1.34-0.01T)(S-35) + 0.016z. Typical: ~1,500 m/s.

To km/h: × 3.6. To ft/s: × 3.281. 1,522 m/s = 5,479 km/h = 3,404 mph.

Naval sonar, commercial ship echo sounders, underwater positioning systems, and marine seismic surveys.

Sound speed increases ~1.3 m/s per °C, ~1.3 m/s per PSU salinity, and ~1.7 m/s per 100m depth. SOFAR channel at ~1000m depth traps sound for thousands of km.

Using a single constant — sound speed in the ocean varies significantly with depth and location. Always measure or calculate for local conditions.

~1,500 m/s is a good approximation. Remember: warmer, saltier, deeper = faster sound. Critical for accurate sonar ranging.

Meter per minute measures the distance in meters traveled in one minute. It's useful for walking speeds, slow vehicle movements, and industrial processes.

1 m/min = 1/60 m/s = 0.0167 m/s = 0.06 km/h. There are 60 seconds in a minute.

To m/s: ÷ 60. To km/h: × 0.06. To ft/min: × 3.281.

Walking pace (70–90 m/min), escalator speed (30–40 m/min), treadmill settings, slow conveyor belts, and some marine biology (fish swimming).

Comfortable walking: 80 m/min (4.8 km/h). Fast walking: 100+ m/min. Escalator: 35 m/min. Slow jog: 150 m/min.

Confusing m/min with km/h — 60 m/min = 3.6 km/h, not 60 km/h. Mixing up m/min with ft/min.

60 m/min = 1 m/s. Quick conversion: m/min ÷ 60 = m/s. Good for walking/jogging pace calculations.