Pressure at Depth

Hydrostatic pressure P = ρgh.

ρ (kg/m³)

Depth (m)

Tab to move between fields

301,554

bar3.015545

psi43.737

How to Use This Calculator

Enter fluid density (kg/m3) -- fresh water = 1000, seawater = 1025, mercury = 13600.
Enter depth (m) below the fluid surface.
Review hydrostatic pressure in Pa, bar, and psi.
Add atmospheric pressure (101325 Pa) to get absolute pressure at depth.
Use for scuba depth planning, submarine design, or pipe pressure calculations.

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