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Buoyancy Calculator

Use our buoyancy calculator a free online tool to calculate the buoyancy force of the object. Enter the values of density of fluid and displaced volume to calculate buoyancy.

What is Buoyancy Force

According to Archimedes’s 1st laws of buoyancy: A body immersed in a fluid experiences a vertical buoyant force equal to the weight of the fluid it displaces.

Buoyancy Calculator


Have you ever drawn water from a well and felt that the bucket of water is heavier when it is out of the water? Have you ever wondered why a ship made of iron and steel does not sink in sea water, but while the same amount of iron and steel in the form of a sheet would sink? These questions can be answered by taking buoyancy in consideration

The tendency of a fluid to exert an upward force on a body immersed partly or wholly in it is called buoyancy. The resultant upward force experienced by a body when immersed in a fluid is called buoyant force or upward thrust.

Buoyancy Force Formula

Buoyancy Force = ρ x V x g

ρ is the density of the fluid
V is the volume
g is the gravitational constant = 9.8 m/s
The SI unit of Buoyancy force is Newton (N).

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