Compression Calculator
Bore (mm)
Enter a positive number.
Stroke (mm)
Enter a positive number.
Chamber Volume (cc)
Enter a positive number.
Number of Cylinders
Enter a positive integer.
Calculate
Results
Compression Ratio
-
Displacement (cc)
-
Formula:
Displacement = π/4 × Bore² × Stroke × Cylinders. Compression Ratio = (Displacement per cylinder + Chamber Volume) / Chamber Volume.