Example 1
Displacing 1.0 L of fresh water gives a buoyant force of about 9.81 N.
Mendeleev
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Physics tools › Buoyant force
Mendeleev · Physics
Buoyant force
An immersed object experiences an upward force equal to the weight of the displaced fluid.
Formula usedFᵦ = ρgV
Visual cue · fluid
Calculate
Buoyant force
What do the symbols mean?
Fᵦbuoyant force
ρdensity
ggravitational field strength
Vdisplaced volume
Two worked examples
Example 2
A 0.050 m³ submerged volume in seawater of density 1,025 kg/m³ gives about 503 N.
Good to knowUse the displaced fluid volume, which is not always the object’s full volume if it is only partly immersed.