Water Density
The density of fresh and salt water from temperature and salinity.
What to find:
Atmospheric pressure. Ocean salinity is about 35 ‰.
This calculator finds the density of fresh and salt water from temperature and salinity at atmospheric pressure.
Fresh water uses Kell’s formula (1975), and salt water uses the EOS-80 equation of state of sea water.
| Water | Density, kg/m³ |
|---|---|
| Fresh, 4 °C | ≈ 999.97 |
| Fresh, 20 °C | ≈ 998.2 |
| Sea, 25 °C, 35 ‰ | ≈ 1023.3 |
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