Calculator for CID

Engine Size and Compression Calculator

Fill in either SAE or Metric values by double clicking on "number". Then click on when finished.

Cylinder Diameter (inches ex: 4.25)			Cylinder Diameter (mm)
Stroke Length (inches ex: 4.25)			Stroke Length (mm)
Number of cylinders (4, 5, 6, 8)			Number of cylinders
Chamber in cc's (ex: 119)			Chamber in cc's
Piston dome in cc's (Dome = positive #, Flat = 0, dished = negative number) ex: 22			Piston dome in cc's
Gasket Thickness in inches (add plus or minus amount piston is in the hole) ex: .42			Gasket Thickness in mm (add plus or minus amount piston is in the hole)

The displacement is cubic inches or liters.
You also have a Compression ratio of :1