Buoyancy Calculator

Calculate the buoyant force, net force, and whether an object floats or sinks using Archimedes' principle: F_b = ρ_fluid × V × g.

Object Volume

m³

Object Density

kg/m³

Fluid Density

kg/m³

Tab to move between fields

Buoyant Force

98.1 N

Float / Sink

Floats

Object Weight78.48 N

Net Force (+ = up)19.62 N

Fraction Submerged80%

Apparent Weight0 N

How to Use This Calculator

Enter Object Volume, Object Density, and Fluid Density.
Review Buoyant Force (N) and Float / Sink.
Use Object Weight (N) and Net Force (+ = up) to inform your decision.
Use the chart to visualize the results and explore different scenarios by adjusting inputs.

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