Hydrostatic Pressure Calculator
Determine the pressure exerted by a static fluid at a given depth using ρ g h.
Assumes uniform fluid density and ignores temperature variations.
Examples
- 1000 kg/m³ at 5 m ⇒ 49,050 Pa
- 1025 kg/m³ at 10 m ⇒ 100,552.5 Pa
- 850 kg/m³ at 3 m ⇒ 25,011.5 Pa
FAQ
What constant is used for gravity?
This calculation uses 9.81 m/s² for gravitational acceleration.
Does it include atmospheric pressure?
No, add atmospheric pressure separately for absolute pressure.
Is the density fixed?
Enter the appropriate density for the fluid in question.
Additional Information
- Hydrostatic pressure rises linearly with depth in incompressible fluids.
- Density varies with temperature and salinity, slightly affecting pressure.
- Review the [density explainer](/units-and-measures/density-rho/) to select appropriate ρ values before plugging numbers into this calculator.
- Understand how pascals describe fluid and structural stress in our [The Pascal (Pa): SI Unit of Pressure guide](/units-and-measures/the-pascal-si-unit-of-pressure/).