Calculate the buoyant force acting on a submerged object.
Fluid & Object Properties
Calculation Results
About this calculator
Overview
Archimedes' principle states that the upward buoyant force exerted on a body immersed in a fluid is equal to the weight of the fluid that the body displaces.
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Pro Tips
Water density is approx 1000 kg/m³.
Seawater is denser (approx 1025 kg/m³).
If buoyant force > object weight, it floats; otherwise, it sinks.
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Fun Facts
"Archimedes famously shouted 'Eureka!' after discovering this principle while taking a bath."
"Massive steel ships float because their hollow hulls displace a volume of water that weighs more than the ship itself."
"Hot air balloons use this principle in air; the hot air inside is less dense than the cold air outside."
