Enter the diameter (in) and the stroke length (in) into the Calculator. The calculator will evaluate the Barrels Per Stroke. 

Barrels Per Stroke Formula

BPS = .000243*D^2*S


  • BPS is the Barrels Per Stroke (bbl/stroke)
  • D is the diameter (in)
  • S is the stroke length (in)

To calculate Barrels Per Stroke, square the diameter, multiply by the stroke length, then multiply again by.000243.

How to Calculate Barrels Per Stroke?

The following steps outline how to calculate the Barrels Per Stroke.

  1. First, determine the diameter (in). 
  2. Next, determine the stroke length (in). 
  3. Next, gather the formula from above = BPS = .000243*D^2*S.
  4. Finally, calculate the Barrels Per Stroke.
  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.

diameter (in) = 750

stroke length (in) = 60