Compression Ratio Calculator

Compression Ratio Calculator

Use this tool to quickly calculate your engine’s optimal compression ratio and total displacement – Just enter your engine’s setup, click calculate, and you’re on your way to maximum performance!

Bore: (diameter)
Stroke:
Cylinder Head Volume:
Effective Dome Volume:
Use (-) for Dome and (+) for Dish.

Deck Clearance:
Compressed Gasket Thickness:
Number of Cylinders:
Compression Ratio :
Total Displacement (in.3) :
Total Displacement cc’s :