Buoyancy is the upward force a fluid exerts on a submerged (or floating) object, discovered by Archimedes — it's equal to the weight of the fluid the object displaces.
Buoyancy is the upward force a fluid exerts on a submerged (or floating) object, discovered by Archimedes — it's equal to the weight of the fluid the object displaces. This calculator finds that buoyant force from the fluid's density and the submerged volume.
A 0.05 m³ object is fully submerged in water (ρ = 1000 kg/m³). Buoyant Force = 1000 × 0.05 × 9.81 = 490.5 N.
It's the upward force a fluid (liquid or gas) exerts on a submerged or floating object, as described by Archimedes' Principle.
Buoyancy force = fluid density x volume displaced x gravitational acceleration.
An object floats if the buoyancy force equals or exceeds its weight (meaning its average density is less than the fluid's); it sinks if its weight exceeds the buoyancy force.