Do you want to know the exposure latitude? This means how much you can mess up exposure with it and still get a printable shot. This is, to a large degree, a subjective thing, as the standard of judgment is print quality...a very subjective thing.
Do you want to know how large of a luminance range (subject brightness range) the film can capture? If so, that is determined by the shape of the film's curve and the film's maximum and minimum densities. This is the dynamic range of the film, and seems to me to be what you are asking for.
...and, most importantly, the above is far different than what the printing paper can actually print. Film can capture much, much more than printing paper can actually print in a straight print expposure. Thus, we have a negative with a bunch of information on it, and when we print, we decide which of this information to use, by way of various methods of manipulation, such as burning and contrast filtration. (This is why so many people are so on about scanning. It takes a good printer to dig everything out of a negative and get in onto the print, but it is not so technically demanding of the printer with a scan and Photoshop.)