Buoyancy Force

The Buoyancy Force calculator computes the upward force of buoyancy based on the volume displaced, density of fluid and the acceleration due to gravity.

INSTRUCTIONS: Choose units and enter the following:

• (V) Volume Displaced
• (ρ) Density of Fluid  (default for fresh water)

Force of Buoyancy (F):  The calculator returns the force in Newtons (N).  However, this can be automatically converted to compatible units via the pull-down menu.

Related Calculators:

• Weight Calculator - This computes the force of gravity on a mass
• Mead Density Lookup - (CLICK HERE) This provides a quick reference to the mean density of hundreds of liquids, substances and other materials.

The Math / Science

Buoyancy is the upward force on a body submerged in a fluid. The formula for buoyancy is:

  F = V•ρ•g     

    where

•     F = buoyant force
•     V = body volume
•     ρ = density of fluid
•     g = acceleration of gravity