Displacement Calculator

Enter the cylinder bore and the crankshaft stroke in millimeters.  The program will calculate your engine size both in cubic centimeters and cubic inches.  Click on the “Calculate” button to see the results.
  Parameter   Value   Units
  Bore   millimeters (70 to 110)
  Stroke   millimeters (50 to 100)
  Cylinders   (enter 1 to find single cylinder size)
  Displacement   cubic centimers
  Displacement   cubic inches