Club Cars

Compression Ratio Calculator

Enter engine measurements to calculate compression ratio. Includes units toggle, cylinder count totals, and a printable results summary.

Cylinder bore diameter (in).
Crankshaft stroke (in).
Combustion chamber volume (cc).
Compressed thickness (in).
If unknown, leave blank (uses Bore).
Usually 1.
Piston-to-deck at TDC. Positive = piston below deck. Negative = piston above deck.
Dish adds volume (+). Dome subtracts volume (βˆ’).
This field is no longer used (it produced incorrect results).
This field is no longer used.
This field is no longer used.
Compression Ratio: β€”