Lawnmower Engine CC
to HP Calculator

cc to hp

Entry Form

Engine CC:to hp

Engine HP:to cc


Engine HP:

Engine CC:

Using This Lawnmower
CC to HP Calculator

Enter Lawnmower Engine
Rated CC to Calculate.
Engine HP.

Enter Lawnmower
Rated HP to Calculate.
Engine CC.


A four cycle lawnmower engine
rated at 123 CC will produce
approximately 4.6 horsepower.

Horsepower will vary
somewhat due to compression
differences and engine
physical construction.

This calculator gives an
approximate hp and cc,
for small 4 cycle engines
over a broad range of

The lawnmower engine has a
cylinder with a head at one end,
of the cylinder, and a piston that
travel up and down in the

When the piston is at the
bottom of the cylinder, the
volume between the head
and piston is measured in
cubic centimeters.

This cc is used to calculate
horse power (hp).

Cylinder formula
3.14159 * (radius*radius)
* length


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