Archimedes' Principle Calculator

Your details

Select a common fluid or choose Custom to enter any density.
Volume of the object that is submerged in the fluid. Use the full volume for a completely submerged object.
m³
If provided, the calculator also shows the apparent (underwater) weight and whether the object floats or sinks.
kg
Standard Earth gravity is 9.80665 m/s². Change this for other planets (e.g. Moon: 1.62, Mars: 3.72).
m/s²
Buoyant force
9.8067N

Upward force exerted by the fluid on the object

Displaced fluid mass1kg
Buoyant force9.8067
True weight-
Apparent weight-

Buoyant force: 9.8066 N (water).

  • The submerged volume displaces 1.000 kg of fluid, creating a buoyant force of 9.8066 N.

Next stepTo find whether your object floats, enter its mass in the 'Object mass' field. The calculator will compare buoyant force to true weight instantly.

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