I 13 pro Phone case fit 14 pro case

Sorry, I meant to say that the iPhone 14 Pro is slightly narrower and slightly taller.

The differences are small but are enough to keep a case designed for one model from precisely fitting the other one unless the case's tolerances are fairly loose. If you're buying a new case, best to get one designed for the specific model of iPhone. If it's a case you already have, then you can of course try it and see how it fits.

Regards.

What do you mean, will a case fit a case? If you mean will an iPhone 13 Pro fit in an iPhone 14 Pro case, then no. The sizes of the two phones are slightly different. The 14 is slightly shorter and taller and slightly thicker.

Regards.