The hp is not determined from the cc. However there is a relationship between hp and engine volume (CC). For most engines the larger the volume, the greater the hp (this doesn't always hold true however).
150 cc a hp
I was thinking closer to 150 cc but it's not an exact science.
Around 4/5 hp.
No direct equivalent. Engines of same cc may have different hp.
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.
Seems to be 6 hp.
5 hp
how many cc is a 13 hp
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.
1hp=42cc thus 2hp will be equivalent to 84cc.. they are interrelated..
This is from movingsnow.com: Here is a simple chart of approximate cc to torque to horsepower conversions. It's not exact, but it will give you a better idea of how big the new engines are. I used 3600 rpm in the formula for this comparison. 179 cc = 5 hp 205 cc = 8 to 9 Gross Torque = 5.5 to 6 hp 250 cc = 11 to 11.5 Gross Torque = 7 to 8 hp 305 cc = 13.5 to 14.5 Gross Torque = 9 to 10 hp 342 cc = 15.5 to 16.5 Gross Torque = 11 to 12 hp
190 cc. is about 5 hp.