How it works
Calculate the buoyant force from displaced fluid volume. This is the upward force, not the net force on the object.
F_b = ρVg
Worked example
Show example inputs and result
Fluid density: 1,000 · Displaced fluid volume: 0.01 · Gravity: 9.80665.
- Buoyant force
- 98.0665 N
Questions and answers
Why are some results rounded?
Results display up to 8 decimal places. Calculations use the unrounded values; very small values use scientific notation. JavaScript floating-point arithmetic can introduce tiny rounding differences.
Are my inputs sent to a server?
The calculator processes inputs in your browser. Its code does not send your values to a server.
Method reviewed: October 8, 2026 · Methods & accuracy