Our cubic inch calculator will work out the total cubic inches of displacement (cid) for an engine given its bore, stroke and number of cylinders. The cubic inches of an engine is the measure of the swept volume of all of the pistons in the bores, not including the combustion chamber itself.

The formula for this cubic inch calculator is

cid = (((Bore/2)^2) x Stroke x Pi) x Cyl

you can also calculate with the metric version

variable | description |

bore | the diameter of the bore of the cylinders |

stroke | the stroke length of the piston |

cylinders | the total number of cylinders |

cubic inch | the total cubic inches of displacement of the engine (cid) |

liters | cubic inch to liter, ci to cc |

related calculators |