Calculate the upward force exerted by a fluid on a submerged object.
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Calculation Results
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About this calculator
Quick Reference
ĻFluid Density
VSubmerged Volume
gAcceleration of gravity
ForceMeasured in Newtons
Overview
The buoyant force is the upward force that keeps things afloat. It equals the weight of the fluid that the object has pushed out of the way (Archimedes' Principle).
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Pro Tips
The density of fresh water is 1000 kg/mĀ³.
The gravity on Earth is approximately 9.81 m/sĀ².
If the buoyant force is less than the object's actual weight, it will sink.
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Fun Facts
"Submarines change their buoyancy by filling or emptying ballast tanks with water."
"Hot air balloons work on the same principle, but with air as the fluid."
"Icebergs float because ice is about 9% less dense than liquid water."
