Engine Displacement and
Horsepower (HP) Calculator

Calculate a small gasoline
engine displacement,
and horsepower (HP).

Engine Displacement
Horsepower (HP)

Calculate Engine Displacement
of a Small Gasoline Engine

Entry Form

Bore:In inches

Stroke:In inches

Cylinders:Min. One



Horse Power:

Using this Small Engine
Displacement Calculator.

Enter all sizes in inches.

Enter bore and stroke
measurements in inches.


An engine with a 5.4 bore
and stroke will have 123.6 cc.

Horsepower is based on 32.5
CC produces 1 horsepower (HP).

N/A means you missed
filling in a space.


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