QUESTION: How long should a chapter be?
There is no "official" length for chapters. Most run around 15-20 manuscript pages in genre. Category romances run a bit shorter.
The best rule of thumb is to end the chapter at your strongest hook/cliffhanger so the reader can't resist reading a few more pages to see what happens next.
The worst place to end a chapter is after solutions have been found, and the next disaster hasn’t started happening.