Engine Displacement Calc

4.030 bore, 3.750 stroke, 8 cylinders - is it 383 or 406 cubic inch? Total displacement in ci, cc, liters with oversquare/undersquare ratio. $1.99 one-time, no login.

Need to know the exact displacement of an engine build before ordering parts? Whether you are verifying a crate motor, sizing a swap, or checking class compliance, this app calculates total engine displacement from bore, stroke, and cylinder count in seconds.

Supports metric (mm) and imperial (inches). Shows total volume in cc, liters, and cubic inches. Includes bore/stroke ratio analysis with square, oversquare, and undersquare classification.

FEATURES:

• Enter bore diameter, stroke length, and number of cylinders
• Instant per-cylinder and total displacement
• Output in cc, liters, and cubic inches simultaneously
• Bore/stroke ratio with automatic classification
• Metric and imperial unit toggle
• Works completely offline

Perfect for engine builders, mechanics, race teams, and automotive enthusiasts who need accurate displacement figures on the spot.