Water - Speed of Sound vs. Temperature
Speed of sound in water at temperatures ranging 32 - 212°F (0 - 100°C) - Imperial and SI units.
Speed of Sound in Water - imperial units (BG units)
| Temperature - t - (oF) | Speed of Sound - c - (ft/s) |
|---|---|
| 32 | 4603 |
| 40 | 4672 |
| 50 | 4748 |
| 60 | 4814 |
| 70 | 4871 |
| 80 | 4919 |
| 90 | 4960 |
| 100 | 4995 |
| 120 | 5049 |
| 140 | 5091 |
| 160 | 5101 |
| 180 | 5095 |
| 200 | 5089 |
| 212 | 5062 |

Speed of Sound in Water - in SI units
| Temperature - t - (oC) | Speed of Sound - c - (m/s) | |
|---|---|---|
| Water | Seawater | |
| 0 | 1403 | 1449 |
| 5 | 1427 | |
| 10 | 1447 | 1490 |
| 20 | 1481 | 1522 |
| 30 | 1507 | 1546 |
| 40 | 1526 | 1563 |
| 50 | 1541 | |
| 60 | 1552 | |
| 70 | 1555 | |
| 80 | 1555 | |
| 90 | 1550 | |
| 100 | 1543 | |
- Seawater with salinity S = 35 (35.17 g/kg)
- 1 m/s = 3.28 ft/s
- Speed and Velocity of Sound - Speed of sound in air, fluids and solids. Formulas and values for different materials

Note that speed is a scalar quantity. Velocity is vector quantity with direction.