Fluid mechanics · Fluid mechanics
Buoyant force
Calculate the buoyant-force magnitude from displaced fluid density and volume.
Method and scope
FB = ρfluid g Vdisplaced.
Use buoyant force for educational calculation or a clearly scoped arithmetic estimate. Intended for Learners, General educational use.
Inputs- Fluid density — kg/m³, g/cm³
- Displaced fluid volume — m³, L, mL
SOURCE AND LIMITS
Assumptions: The displaced fluid density is uniform. Displaced volume is known and fully submerged volume is entered.
Limitations: The net force also depends on object weight and other applied forces.
Method version 1.0.0 · Unit registry and result provenance are shown after calculation. This tool is limited to the documented scope.Explore related fields
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