Enter the total buoyancy (N) and the opposing forces (N) into the Calculator. The calculator will evaluate the Net Buoyancy. 

Net Buoyancy Formula

NB = TB - OF


  • NB is the Net Buoyancy (N)
  • TB is the total buoyancy (N)
  • OF is the opposing forces (N)

To calculate Net Buoyancy, subtract the opposing forces from the total buoyancy.

How to Calculate Net Buoyancy?

The following steps outline how to calculate the Net Buoyancy.

  1. First, determine the total buoyancy (N). 
  2. Next, determine the opposing forces (N). 
  3. Next, gather the formula from above = NB = TB – OF.
  4. Finally, calculate the Net Buoyancy.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

total buoyancy (N) = 1400

opposing forces (N) = 200