I.H.F.S.P.A.

Engine Displacement Calculator
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Fill in either Inch or Metric values, then click

Inch Values

Metric Values

Enter the Bore Diameter (inch) Enter the Stroke Length (inch) Enter the Number of cylinders

Enter the Bore Diameter (mm) Enter the Stroke Length (mm) Enter the Number of cylinders

The numbers you entered give a displacement of cubic inches or liters.