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Mihsaba›Hydrostatic Pressure Calculator

Hydrostatic Pressure Calculator

Calculate fluid gauge pressure from density, gravity and depth, plus absolute pressure when surface pressure is provided.

These are ideal fluid models; viscosity, losses, friction, compressibility and real-system efficiency are excluded unless stated.

How to use

Pressure in a static fluid rises with depth by ρgh. The tool reports gauge pressure from the fluid column and optionally absolute pressure including surface pressure.

  1. Enter density and gravity.
  2. Enter depth.
  3. Optionally enter surface pressure.
  4. Review gauge/absolute pressure.

How it is calculated

Pg=ρgh; Pabs=Psurface+ρgh

Example

Water at 1000 kg/m³ and 10 m depth adds about 98.1 kPa.

Important notes

Assumes a static incompressible fluid with constant density and gravity.

Frequently asked questions

Gauge vs absolute?

Gauge here is the fluid-column contribution; absolute adds surface pressure.

Does density vary?

Not in this model.

Is h vertical?

Yes.