Engine Displacement Calculator

Bore × stroke × cylinder count: get displacement in cc, litres and cubic inches.

Formula

Displacement = (π/4) × Bore (mm)² × Stroke (mm) × Number of cylinders / 1000

Assumptions

Bore × stroke × cylinder count: get displacement in cc, litres and cubic inches.

How to read it

Displacement is the volume swept by all pistons. A “square” engine has bore equal to stroke; a long stroke favours torque, a short stroke favours high revs.

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