Pressure & Buoyancy Calculator

Gravitational acceleration, which sets how strongly the fluid weighs down.

Earth is 9.81 m/s².

Density of the surrounding fluid, in kg/m³. Denser fluids give more pressure and more buoyancy.

Fresh water 1000, seawater ≈ 1025, air ≈ 1.225.

How far below the surface, in metres, for the pressure calculation.

Every 10 m of water adds about one atmosphere.

Volume of the submerged object, in litres — the volume of fluid it displaces.

1 L displaces about 1 kg of fresh water.

Density of the object itself, in kg/m³, compared with the fluid to decide floating or sinking.

Below the fluid density it floats; above it, it sinks.