There is no such formula as the hp rating of an engine depends on many factors in addition to the cc size of the cylinders.
There are approximations of this formula for various classes and designs of engine, but you have to remember that they only give rough estimates of hp and using such a formula for a different class or design of engine than it was intended for will give a completely incorrect answer.
There is no standard conversion from cc's to hp. But as a guide, 338cc = aprox 11hp
There is none. A 133 cc engine can have varying hp depending on many things.
5 hp
13.6
I understand that a 250 cc engine is around a 15 hp motor, so a 277 cc engine calculates about 16.5hp. there is no direct conversion between cc and hp because cc is a volume and hp is a energy.
A little over 250cc The easiest conversion is to take the (hp x 42.3) = cc this of course is not exact but very very close... 253.8cc
150 cc a hp
What is 5.5 hp in cc?
1 HP= 15 CC so 1001 HP= 15015 CC's
7hp
A 179 cc engine is around 5.5-6 horsepower. There's no hard and fast rules on cc to hp conversion there are too many variables.
If you mean HP=Horsepower, and CC= Cubic centimeters then HP does have anything to do with CC's. Cc's are the size of the displacement of the engine. HP is the amount of power the engine produces.