Automotive / Engine geometry

Compression Ratio Calculator

Calculate static compression ratio from bore, stroke, chamber, piston, gasket and deck geometry.

Engine geometry

BoreStrokeNumber of cylindersDimension unitCombustion chamberPiston dish (+) / dome (−)Dish adds clearance; dome subtracts it.Head gasket boreGasket thicknessDeck clearance

Compression result

Static compression ratio9.2:1

1,998.2 cc total displacement

Swept volume / cylinder: 499.56 cc
Clearance volume: 60.94 cc
Gasket volume: 5.94 cc
Deck volume: 0 cc