Compression Ratio Calculator Monitor

Bore and stroke in millimeters. Volumes in cc (cubic centimeters).

Cylinder Bore Size (mm)

Crankshaft Stroke (mm)

Head Gasket Bore Diameter (mm)

Compressed Head Gasket Thickness (mm)

Combustion Chamber Volume (cc)

Piston Volume CC (negative for dished pistons)

Piston Deck Clearance (mm, negative if above deck — use '-')

Connecting Rod Length (mm, optional — for Rod/Stroke Ratio)

Engine RPM (optional — for Piston Mean Speed)

Number of Cylinders (optional — for Engine Capacity)

Static Compression Ratio

— : 1

Swept Volume—

Head Gasket Volume—

Deck Clearance Volume—

Total Clearance Volume (Vc)—

Rod/Stroke Ratio—

Piston Mean Speed—

Engine Capacity—

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