Use our engine displacement calculator to calculate an engine's displacement based on the number of cylinders, bore size and stroke length.

Engine displacement: in^{3}

This is quite simply the number of cylinders your engine has. What more could we say?

The bore size is the diameter of each cylinder.

The stroke length is how far the piston travels inside the cylinder.

The formula to calculate an engine's displacement can be seen below, this is what we use in the calculator above.

Engine displacement = π(½ × bore size)^{2} × stroke length × number of cylinders