Nm vs HP

Not everybody understands the difference between torque and horsepower, the most important thing to know is that the first makes the second like this...

Power[HP]=torque[Nm] x speed[rpm] x1/7021.55

this means that power is direct related to torque but they are not one and the same. 

all data available trough e-mail, leave a comment,and after that if you need translations or anything I am at your disposal,

thanks!