Hydrostatic Pressure Calculator
Works out the pressure at a depth in a liquid.
Gauge pressure, from the liquid
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Share sends a link that reopens these numbers. Copy details pastes the full breakdown as a list.
Absolute pressure —
Absolute, in atmospheres — atm
The formula
P = ρ g h absolute = P + surface pressure
The fluid is treated as still and incompressible, which is close for water except at extreme depth. The shape of the container does not matter, only the depth.
What to watch out for
Gauges usually read gauge pressure, above the atmosphere. Divers and gas calculations need absolute pressure.
Frequently Asked Questions
What is the pressure 10 m under fresh water?
98.07 kPa from the water, close to one extra atmosphere.
How much head gives 1 bar of water pressure?
About 10.2 m.