What is the formula toconvert hp into cc?

To convert horsepower (hp) to cubic centimeters (cc), you can use the formula:

[ \text{cc} = \frac{\text{hp} \times 745.7}{\text{RPM} \times \text{efficiency} \times \text{density}} ]

Here, RPM is the engine speed in revolutions per minute, efficiency is the engine's efficiency as a decimal (typically between 0 and 1), and density is the density of the fuel. However, since horsepower and cc measure different aspects of engine performance, there’s no direct conversion without additional context like engine type and operating conditions.