Fluid

Object shape

Cube
Sphere
Ship hull
Block

Material

Gravity

Earth
Moon
Jupiter
Mars

Motion

Read-out

ρ object—
ρ fluid—
Weight mg—
Buoyancy F_b—
Net force—
Submerged—
Apparent wt.—
Verdict—
Drag the object up or down with the mouse. Buoyant force equals the weight of the fluid displaced: F_b = ρ·V_sub·g. Equilibrium is reached when the submerged fraction equals ρ_object / ρ_fluid.